diff --git a/src/commands/CmdDefine.cpp b/src/commands/CmdDefine.cpp
index b45878b5..10fb3825 100644
--- a/src/commands/CmdDefine.cpp
+++ b/src/commands/CmdDefine.cpp
@@ -25,11 +25,15 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 #include <cmake.h>
-#include <Rules.h>
+#include <commands.h>
 #include <iostream>
 
 ////////////////////////////////////////////////////////////////////////////////
-int CmdDefine (Rules& rules)
+int CmdDefine (
+  const std::vector <std::string>& args,
+  Rules& rules,
+  Database& database,
+  Log& log)
 {
   std::cout << "[define: rule tweaking]\n";
   return 0;
diff --git a/src/commands/commands.h b/src/commands/commands.h
index 92bff1d3..d55df802 100644
--- a/src/commands/commands.h
+++ b/src/commands/commands.h
@@ -38,7 +38,7 @@ int CmdClear       (
 int CmdConfig      (                                                                      );
 int CmdContinue    (                                          Database&,              Log&);
 int CmdDefault     (                                  Rules&, Database&                   );
-int CmdDefine      (                                  Rules&                              );
+int CmdDefine      (const std::vector <std::string>&, Rules&, Database&,              Log&);
 int CmdDiagnostics (                                  Rules&, Database&, Extensions&, Log&);
 int CmdExport      (                                          Database&                   );
 int CmdExtensions  (                                  Rules&,            Extensions&      );
diff --git a/src/init.cpp b/src/init.cpp
index c84c7fa0..155cfe91 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -193,7 +193,7 @@ int dispatchCommand (
            if (matches[0] == allCommands[0])  status = CmdClear       (                                      );
       else if (matches[0] == allCommands[1])  status = CmdConfig      (                                      );
       else if (matches[0] == allCommands[2])  status = CmdContinue    (             database,             log);
-      else if (matches[0] == allCommands[3])  status = CmdDefine      (      rules                           );
+      else if (matches[0] == allCommands[3])  status = CmdDefine      (args, rules, database,             log);
       else if (matches[0] == allCommands[4])  status = CmdDiagnostics (      rules, database, extensions, log);
       else if (matches[0] == allCommands[5])  status = CmdExport      (             database                 );
       else if (matches[0] == allCommands[6])  status = CmdExtensions  (      rules,           extensions     );