diff --git a/storage/tokudb/hatoku_defines.h b/storage/tokudb/hatoku_defines.h
index fcaeb2e4118..a24aade6bb8 100644
--- a/storage/tokudb/hatoku_defines.h
+++ b/storage/tokudb/hatoku_defines.h
@@ -161,7 +161,7 @@ PATENT RIGHTS GRANT:
 #if defined(MARIADB_BASE_VERSION)
 #define TOKU_INCLUDE_EXTENDED_KEYS 1
 #endif
-#define TOKU_INCLUDE_HANDLERTON_HANDLE_FATAL_SIGNAL 0
+#define TOKU_INCLUDE_HANDLERTON_HANDLE_FATAL_SIGNAL 1
 
 #else
 #error