diff --git a/examples/procmap.c b/examples/procmap.c
index e451eeb2..b32555bd 100644
--- a/examples/procmap.c
+++ b/examples/procmap.c
@@ -39,6 +39,8 @@
 #include <sys/resource.h>
 #include <sys/mman.h>
 
+#include <fcntl.h>
+
 #ifndef PROFILE_COUNT
 #define PROFILE_COUNT	1
 #endif