diff --git a/gst/debug/efence.c b/gst/debug/efence.c
index 3178d16ee3..d5b9fcd6a1 100644
--- a/gst/debug/efence.c
+++ b/gst/debug/efence.c
@@ -30,6 +30,10 @@
 
 #include "efence.h"
 
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
 static GstElementDetails plugin_details = {
   "Electric Fence",
   "Testing/EFence",