diff --git a/src/pg_query_fingerprint.c b/src/pg_query_fingerprint.c
index 175be568..8a4b7d24 100644
--- a/src/pg_query_fingerprint.c
+++ b/src/pg_query_fingerprint.c
@@ -13,6 +13,7 @@
 #include "nodes/parsenodes.h"
 #include "nodes/value.h"
 
+#include <stdio.h>
 #include <unistd.h>
 #include <fcntl.h>