diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index f7210ad..c5c7a76 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -122,7 +122,7 @@
 			return false;
 	}
 
-	if (attr->probability <= random32() % 100)
+	if (attr->probability <= prandom_u32() % 100)
 		return false;
 
 	if (!fail_stacktrace(attr))