diff --git a/app/tests/test_snyk_scm_refresh.py b/app/tests/test_snyk_scm_refresh.py
index 323ab46..b4a051d 100644
--- a/app/tests/test_snyk_scm_refresh.py
+++ b/app/tests/test_snyk_scm_refresh.py
@@ -157,7 +157,9 @@ def test_passes_manifest_filter():
     path_fail_2 = "/node_modules/some/package.json"
     path_pass_1 = "package.json"
     path_pass_2 = "requirements-test.txt"
+    path_fail_3 = "tests/vuln-in-git/Gemfile.lock"
     assert passes_manifest_filter(path_fail_1) == False
     assert passes_manifest_filter(path_pass_1) == True
     assert passes_manifest_filter(path_fail_2) == False
     assert passes_manifest_filter(path_pass_2) == True
+    assert passes_manifest_filter(path_fail_3) == False
diff --git a/common.py b/common.py
index 4203b67..18c1791 100644
--- a/common.py
+++ b/common.py
@@ -15,7 +15,7 @@
 MANIFEST_PATTERN_CONTAINER = '^.*(Dockerfile)$'
 MANIFEST_PATTERN_IAC = '.*[.](yaml|yml|tf)$'
 MANIFEST_PATTERN_CODE = '.*[.](js|cs|php|java|py)$'
-MANIFEST_PATTERN_EXCLUSIONS = '^.*(fixtures|\/tests\/|\/__tests__\/|\/test\/|__test__|[.].*ci\/|.*ci[.].yml|\/node_modules\/|\/bower_components\/|variables[.]tf|outputs[.]tf).*$'
+MANIFEST_PATTERN_EXCLUSIONS = '^.*(fixtures|tests\/|__tests__|test\/|__test__|[.].*ci\/|.*ci[.].yml|node_modules\/|bower_components\/|variables[.]tf|outputs[.]tf).*$'
 
 GITHUB_ENABLED = False
 GITHUB_ENTERPRISE_ENABLED = False