diff --git a/tests/functionaltests/proftest.c b/tests/functionaltests/proftest.c
index 50dbffd2..c75a0611 100644
--- a/tests/functionaltests/proftest.c
+++ b/tests/functionaltests/proftest.c
@@ -1,4 +1,5 @@
 #include <sys/stat.h>
+#include <sys/wait.h>
 #include <glib.h>
 
 #include <setjmp.h>