diff --git a/Makefile b/Makefile
index e5f430b0..22842b9a 100644
--- a/Makefile
+++ b/Makefile
@@ -73,7 +73,7 @@ test-r7rs: bin/picrin t/r7rs-tests.scm
 test-contribs: bin/picrin $(CONTRIB_TESTS)
 
 test-nostdlib:
-	$(CC) -I extlib/benz/include -D'PIC_ENABLE_LIBC=0' -D'PIC_ENABLE_FLOAT=0'-nostdlib -shared -std=c89 -ansi -pedantic -Wall -Wextra -Werror -o lib/libbenz.so $(BENZ_SRCS)
+	$(CC) -I extlib/benz/include -D'PIC_ENABLE_LIBC=0' -D'PIC_ENABLE_FLOAT=0'-nostdlib -shared -std=c89 -ansi -pedantic -Wall -Wextra -o lib/libbenz.so $(BENZ_SRCS)
 	rm -f lib/libbenz.so
 
 install: all