diff --git a/C/gprof.c b/C/gprof.c
index 44819276b..bcf811821 100644
--- a/C/gprof.c
+++ b/C/gprof.c
@@ -52,6 +52,7 @@ static char     SccsId[] = "%W% %G%";
 #endif
 
 #include "absmi.h"
+#include <stdio.h>
 
 #if HAVE_STRING_H
 #include <string.h>