diff --git a/socorro/signature/rules.py b/socorro/signature/rules.py
index fadd2a9904..007e23fe4f 100644
--- a/socorro/signature/rules.py
+++ b/socorro/signature/rules.py
@@ -151,8 +151,6 @@ def normalize_cpp_function(self, function, line):
             if function.endswith(ref):
                 function = function[: -len(ref)].strip()
 
-        # Convert `anonymous namespace' to (anonymous namespace)
-
         # Drop the prefix and return type if there is any if it's not operator
         # overloading--operator overloading syntax doesn't have the things
         # we're dropping here and can look curious, so don't try
@@ -247,6 +245,9 @@ def normalize_frame(
 
         # If there's a module, use that
         if module:
+            # Remove extra [ and/or ] at beginning or end if present; see Bug 1926077
+            module = module.strip("[]")
+
             return module
 
         # If there are unloaded modules, use the first one
diff --git a/socorro/signature/tests/test_rules.py b/socorro/signature/tests/test_rules.py
index 2a3a39c5d5..9a48175534 100644
--- a/socorro/signature/tests/test_rules.py
+++ b/socorro/signature/tests/test_rules.py
@@ -295,6 +295,11 @@ def test_no_mutation(self):
                 ),
                 "(unloaded unmod)",
             ),
+            # no function or line, so uses module; module name has extra bracket(s)
+            (("module]", "", "\\a\\b\\c\\source", "", "0xfff"), "module"),
+            (("[module]", "", "\\a\\b\\c\\source", "", "0xfff"), "module"),
+            (("[module", "", "\\a\\b\\c\\source", "", "0xfff"), "module"),
+            (("[[[module]]", "", "\\a\\b\\c\\source", "", "0xfff"), "module"),
         ],
     )
     def test_normalize_frame(self, args, expected):