diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 18504765c23..fc0bc8d99ee 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -593,6 +593,13 @@ PostmasterMain(int argc, char *argv[])
 
 	IsPostmasterEnvironment = true;
 
+	/*
+	 * Start our win32 signal implementation
+	 */
+#ifdef WIN32
+	pgwin32_signal_initialize();
+#endif
+
 	/*
 	 * We should not be creating any files or directories before we check the
 	 * data directory (see checkDataDir()), but just in case set the umask to