1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 8780ec21..4c66d174 100644
--- a/Makefile
+++ b/Makefile
@@ -47,7 +47,7 @@ tags:
 	$(CC) $(CFLAGS) -c $< -o $@
 
 %.tm.testresult: %.tm tomo
-	VERBOSE=0 COLOR=1 CC=gcc ./tomo $< 2>$@ >$@ && cat $@
+	VERBOSE=0 COLOR=1 CC=gcc O=1 ./tomo $< 2>$@ >$@ && cat $@
 
 test: $(TESTS)
 	@echo -e '\x1b[32;7m ALL TESTS PASSED! \x1b[m'