diff --git a/Makefile b/Makefile
index 5e054f7..4589a34 100755
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@ test:
 	bash tests/scripts/test_11.sh
 	bash tests/scripts/test_12.sh
 	bash tests/scripts/test_13.sh
-        bash tests/scripts/test_14.sh
-        bash tests/scripts/test_15.sh
-        bash tests/scripts/test_16.sh
+	bash tests/scripts/test_14.sh
+	bash tests/scripts/test_15.sh
+	bash tests/scripts/test_16.sh
 	bash tests/scripts/test_python_unit_tests.sh