diff --git a/tests/makefile b/tests/makefile
index 330d8bb..c69dd0a 100644
--- a/tests/makefile
+++ b/tests/makefile
@@ -1,5 +1,5 @@
 CC = gcc
-CFLAGS = -Wall -Werror -pedantic
+CFLAGS = -Wall -std=c99
 
 parse: parse.c