diff --git a/vulnerabilities/importers/vulnrichment.py b/vulnerabilities/importers/vulnrichment.py
index 9eb4d3bcb..d207b46fe 100644
--- a/vulnerabilities/importers/vulnrichment.py
+++ b/vulnerabilities/importers/vulnrichment.py
@@ -29,7 +29,7 @@ def advisory_data(self) -> Iterable[AdvisoryData]:
         try:
             vcs_response = self.clone(repo_url=self.repo_url)
             base_path = Path(vcs_response.dest_dir)
-            for file_path in base_path.glob(f"**/**/*.json"):
+            for file_path in base_path.glob("**/**/*.json"):
                 if not file_path.name.startswith("CVE-"):
                     continue
 
diff --git a/vulnerabilities/tests/test_fstring_fix.py b/vulnerabilities/tests/test_fstring_fix.py
new file mode 100644
index 000000000..215185d57
--- /dev/null
+++ b/vulnerabilities/tests/test_fstring_fix.py
@@ -0,0 +1,30 @@
+#
+# Copyright (c) nexB Inc. and others. All rights reserved.
+# VulnerableCode is a trademark of nexB Inc.
+# SPDX-License-Identifier: Apache-2.0
+# See http://www.apache.org/licenses/LICENSE-2.0 for the license text.
+# See https://github.com/aboutcode-org/vulnerablecode for support or download.
+# See https://aboutcode.org for more information about nexB OSS projects.
+#
+
+import ast
+import os
+
+
+def test_no_fstring_without_placeholders_in_vulnrichment():
+    """Test that vulnrichment.py does not contain f-strings without placeholders."""
+    file_path = os.path.join(os.path.dirname(__file__), "..", "importers", "vulnrichment.py")
+    with open(file_path, "r") as f:
+        source = f.read()
+
+    tree = ast.parse(source)
+
+    empty_fstrings = []
+    for node in ast.walk(tree):
+        if isinstance(node, ast.JoinedStr):
+            if all(isinstance(v, ast.Constant) for v in node.values):
+                empty_fstrings.append(node.lineno)
+
+    assert (
+        len(empty_fstrings) == 0
+    ), f"Found f-strings without placeholders at lines: {empty_fstrings}"