diff --git a/grovel/common.h b/grovel/common.h
index 684e32c10e24a39c60e0e4675a64ed5f34403323..4ea2aac99e486e726af65edd7dd550de002c227d 100644
--- a/grovel/common.h
+++ b/grovel/common.h
@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #include <string.h>
+#include <inttypes.h>
 
 #ifndef offsetof
 #define offsetof(type, slot) ((long) ((char *) &(((type *) 0)->slot)))