diff --git a/soalloc/tester.c b/soalloc/tester.c
index 771cc90cb4b56a1fa9cec860ab844ff2d3574603..a56e6fdc8571c374fb2daea5fbca03b2df3bad9c 100644
--- a/soalloc/tester.c
+++ b/soalloc/tester.c
@@ -1,5 +1,6 @@
 #include <assert.h>
 #include <stdbool.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>