diff --git a/Makefile b/Makefile
index 92335397c817da8fc44d9438395d4984918903ea..9c34500312c2a8dc51609058d4055d173aa5c1eb 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ test:   # fails if any command produces exit code != 0
 	@for test in test/*.sl; do \
 		echo; \
 		echo $$test; \
-		isis -g -n -q -10 --script $$test || exit 1; \
+		isis -g -n -q -10 --script ./$$test || exit 1; \
 	done
 	@awk -f test/number_of_if_endif_directives.awk share/isisscripts.sl