diff --git a/src/CLI2.cpp b/src/CLI2.cpp
index 67b175660..ff7e5bca8 100644
--- a/src/CLI2.cpp
+++ b/src/CLI2.cpp
@@ -969,7 +969,7 @@ void CLI2::categorizeArgs ()
                cmd->accepts_miscellaneous ())
     {
       // Error: internally inconsistent.
-      throw std::string (STRING_UNKNOWN_ERROR);
+      throw std::string ("Unknown error. Please report.");
     }
     else if (cmd                             &&
                cmd->accepts_filter ()        &&
@@ -1009,7 +1009,7 @@ void CLI2::categorizeArgs ()
                cmd->accepts_miscellaneous ())
     {
       // Error: internally inconsistent.
-      throw std::string (STRING_UNKNOWN_ERROR);
+      throw std::string ("Unknown error. Please report.");
     }
   }
 
diff --git a/src/Context.cpp b/src/Context.cpp
index eb4a2f824..24a70389d 100644
--- a/src/Context.cpp
+++ b/src/Context.cpp
@@ -595,7 +595,7 @@ int Context::initialize (int argc, const char** argv)
 
   catch (...)
   {
-    error (STRING_UNKNOWN_ERROR);
+    error ("Unknown error. Please report.");
     rc = 3;
   }
 
@@ -708,7 +708,7 @@ int Context::run ()
 
   catch (...)
   {
-    error (STRING_UNKNOWN_ERROR);
+    error ("Unknown error. Please report.");
     rc = 3;
   }
 
diff --git a/src/l10n/deu-DEU.h b/src/l10n/deu-DEU.h
index d8541bba7..d8167caaf 100644
--- a/src/l10n/deu-DEU.h
+++ b/src/l10n/deu-DEU.h
@@ -702,7 +702,6 @@
 // Errors
 // TODO Move each of these to appropriate section.
 #define STRING_ERROR_PREFIX          "Fehler: "
-#define STRING_UNKNOWN_ERROR         "Unbekannter Fehler."
 #define STRING_TRIVIAL_INPUT         "Sie müssen einen Befehl oder eine Aufgabe zum ändern angeben."
 #define STRING_ASSUME_INFO           "Kein Befehl angegeben - nehme 'information' an."
 #define STRING_INFINITE_LOOP         "Beende Ersetzung, weil mehr als {1} Änderungen durchgeführt wurden - Schutz vor Endlosschleifen."
diff --git a/src/l10n/eng-USA.h b/src/l10n/eng-USA.h
index 1a76a170f..69b9ad6c8 100644
--- a/src/l10n/eng-USA.h
+++ b/src/l10n/eng-USA.h
@@ -700,7 +700,6 @@
 // Errors
 // TODO Move each of these to appropriate section.
 #define STRING_ERROR_PREFIX          "Error: "
-#define STRING_UNKNOWN_ERROR         "Unknown error. Please report."
 #define STRING_TRIVIAL_INPUT         "You must specify a command or a task to modify."
 #define STRING_ASSUME_INFO           "No command specified - assuming 'information'."
 #define STRING_INFINITE_LOOP         "Terminated substitution because more than {1} changes were made - infinite loop protection."
diff --git a/src/l10n/epo-RUS.h b/src/l10n/epo-RUS.h
index 12d07c90c..1a03f3253 100644
--- a/src/l10n/epo-RUS.h
+++ b/src/l10n/epo-RUS.h
@@ -702,7 +702,6 @@
 // Errors
 // TODO Move each of these to appropriate section.
 #define STRING_ERROR_PREFIX          "Eraro: "
-#define STRING_UNKNOWN_ERROR         "Eraro nekonata."
 #define STRING_TRIVIAL_INPUT         "Oni devas specifi komandon, aŭ taskon ke vi volas modifi."
 #define STRING_ASSUME_INFO           "Nenia komando specifita.  Supozanta 'information'."
 #define STRING_INFINITE_LOOP         "Finis anstataŭon ĉar ekzistas pli de {1} ŝanĝoj - protekto kontraŭ senfina ripeton."
diff --git a/src/l10n/esp-ESP.h b/src/l10n/esp-ESP.h
index fd4524167..bea071e29 100644
--- a/src/l10n/esp-ESP.h
+++ b/src/l10n/esp-ESP.h
@@ -714,7 +714,6 @@
 // Errors
 // TODO Move each of these to appropriate section.
 #define STRING_ERROR_PREFIX          "Error: "  // |esp-ESP|==|eng-USA|
-#define STRING_UNKNOWN_ERROR         "Error desconocido."
 #define STRING_TRIVIAL_INPUT         "Debe especificar un comando o una tarea a modificar."
 #define STRING_ASSUME_INFO           "No especificó un comando - asumido 'information'."
 #define STRING_INFINITE_LOOP         "Sustitución terminada debido a que se hicieron más de {1} cambios - protección contra ciclo eterno."
diff --git a/src/l10n/fra-FRA.h b/src/l10n/fra-FRA.h
index 99eb79876..f09c1cdbd 100644
--- a/src/l10n/fra-FRA.h
+++ b/src/l10n/fra-FRA.h
@@ -704,7 +704,6 @@
 // Errors
 // TODO Move each of these to appropriate section.
 #define STRING_ERROR_PREFIX          "Erreur : "
-#define STRING_UNKNOWN_ERROR         "Erreur inconnue."
 #define STRING_TRIVIAL_INPUT         "Il vous faut spécifier une commande ou une tâche à modifier."
 #define STRING_ASSUME_INFO           "No command specified - assuming 'information'."
 #define STRING_INFINITE_LOOP         "Substitution arrêté parce que plus de {1} changements ont été faits - protection contre les boucles infinies."
diff --git a/src/l10n/ita-ITA.h b/src/l10n/ita-ITA.h
index db07c4c84..6545f6d2c 100644
--- a/src/l10n/ita-ITA.h
+++ b/src/l10n/ita-ITA.h
@@ -703,7 +703,6 @@
 // Errors
 // TODO Move each of these to appropriate section.
 #define STRING_ERROR_PREFIX          "Errore: "
-#define STRING_UNKNOWN_ERROR         "Errore sconosciuto."
 #define STRING_TRIVIAL_INPUT         "Specificare un comando o un task da modificare"
 #define STRING_ASSUME_INFO           "Nessun comando specificato - si assume 'information'."
 #define STRING_INFINITE_LOOP         "Sostituzione terminata poiché più di {1} modifiche sono state fatte - protezione da ciclo infinito"
diff --git a/src/l10n/jpn-JPN.h b/src/l10n/jpn-JPN.h
index 6d96c7b6e..0a408ce40 100644
--- a/src/l10n/jpn-JPN.h
+++ b/src/l10n/jpn-JPN.h
@@ -704,7 +704,6 @@
 // Errors
 // TODO Move each of these to appropriate section.
 #define STRING_ERROR_PREFIX          "エラー: "
-#define STRING_UNKNOWN_ERROR         "不明なエラー。"
 #define STRING_TRIVIAL_INPUT         "変更したいコマンドまたはタスクを指定しなければなりません。"
 #define STRING_ASSUME_INFO           "コマンドが指定されていません - 'information' を仮定します。"
 #define STRING_INFINITE_LOOP         "Terminated substitution because more than {1} changes were made - infinite loop protection."
diff --git a/src/l10n/pol-POL.h b/src/l10n/pol-POL.h
index 08264e014..c950f3089 100644
--- a/src/l10n/pol-POL.h
+++ b/src/l10n/pol-POL.h
@@ -704,7 +704,6 @@
 // Errors
 // TODO Move each of these to appropriate section.
 #define STRING_ERROR_PREFIX          "Błąd: "
-#define STRING_UNKNOWN_ERROR         "Nieznany błąd."
 #define STRING_TRIVIAL_INPUT         "Musisz podać polecenie lub zadanie do zmiany."
 #define STRING_ASSUME_INFO           "Nie podano polecenia - zakładam 'information'."
 #define STRING_INFINITE_LOOP         "Podstawienie anulowane ponieważ wykonano więcej niż {1} zmian - zabezpieczenie przed zapętleniem."
diff --git a/src/l10n/por-PRT.h b/src/l10n/por-PRT.h
index ad4564ce5..73b247501 100644
--- a/src/l10n/por-PRT.h
+++ b/src/l10n/por-PRT.h
@@ -704,7 +704,6 @@
 // Errors
 // TODO Move each of these to appropriate section.
 #define STRING_ERROR_PREFIX          "Erro: "
-#define STRING_UNKNOWN_ERROR         "Erro desconhecido."
 #define STRING_TRIVIAL_INPUT         "Deve específicar um comando ou a tarefa a modificar."
 #define STRING_ASSUME_INFO           "Nenhum comando especificado - assumindo 'information'."
 #define STRING_INFINITE_LOOP         "Substituição terminada. Efectuadas mais de {1} alterações - protecção de ciclos infinitos."
diff --git a/src/main.cpp b/src/main.cpp
index c0f3a0a2c..0c5133185 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -28,7 +28,6 @@
 #include <iostream>
 #include <new>
 #include <cstring>
-#include <i18n.h>
 #include <Context.h>
 
 Context context;
@@ -66,7 +65,7 @@ int main (int argc, const char** argv)
 
     catch (...)
     {
-      std::cerr << STRING_UNKNOWN_ERROR << "\n";
+      std::cerr << "Unknown error. Please report.\n";
       status = -2;
     }
   }