diff --git a/lib/config-vms.h b/lib/config-vms.h
index bbc8c5969a0787..8e894aae36a4cc 100755
--- a/lib/config-vms.h
+++ b/lib/config-vms.h
@@ -366,3 +366,6 @@
 #define HAVE_MEMORY_H   1
 
 #define HAVE_FIONBIO	1
+
+/* Define if you have the `sigsetjmp' function. */
+#define HAVE_SIGSETJMP 1