diff --git a/src/TDB2.cpp b/src/TDB2.cpp
index 9ef96c5fe..4e6d1c705 100644
--- a/src/TDB2.cpp
+++ b/src/TDB2.cpp
@@ -636,7 +636,6 @@ void TDB2::commit ()
   // Ignore harmful signals.
   signal (SIGHUP,    SIG_IGN);
   signal (SIGINT,    SIG_IGN);
-  signal (SIGKILL,   SIG_IGN);
   signal (SIGPIPE,   SIG_IGN);
   signal (SIGTERM,   SIG_IGN);
   signal (SIGUSR1,   SIG_IGN);
@@ -655,7 +654,6 @@ void TDB2::commit ()
   // Restore signal handling.
   signal (SIGHUP,    SIG_DFL);
   signal (SIGINT,    SIG_DFL);
-  signal (SIGKILL,   SIG_DFL);
   signal (SIGPIPE,   SIG_DFL);
   signal (SIGTERM,   SIG_DFL);
   signal (SIGUSR1,   SIG_DFL);
diff --git a/src/commands/CmdSync.cpp b/src/commands/CmdSync.cpp
index 78d6f0e86..4f52d9e01 100644
--- a/src/commands/CmdSync.cpp
+++ b/src/commands/CmdSync.cpp
@@ -171,7 +171,6 @@ int CmdSync::execute (std::string& output)
   // Ignore harmful signals.
   signal (SIGHUP,    SIG_IGN);
   signal (SIGINT,    SIG_IGN);
-  signal (SIGKILL,   SIG_IGN);
   signal (SIGPIPE,   SIG_IGN);
   signal (SIGTERM,   SIG_IGN);
   signal (SIGUSR1,   SIG_IGN);
@@ -322,7 +321,6 @@ int CmdSync::execute (std::string& output)
   // Restore signal handling.
   signal (SIGHUP,    SIG_DFL);
   signal (SIGINT,    SIG_DFL);
-  signal (SIGKILL,   SIG_DFL);
   signal (SIGPIPE,   SIG_DFL);
   signal (SIGTERM,   SIG_DFL);
   signal (SIGUSR1,   SIG_DFL);