diff --git a/test/pdf2png.c b/test/pdf2png.c
index 3edb17cc3..543a996e2 100644
--- a/test/pdf2png.c
+++ b/test/pdf2png.c
@@ -23,6 +23,7 @@
  * Author: Kristian Høgsberg <krh@redhat.com>
  */
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <poppler.h>