diff --git a/src/pkgcheck/checks/codingstyle.py b/src/pkgcheck/checks/codingstyle.py
index 317841bce..20d668f88 100644
--- a/src/pkgcheck/checks/codingstyle.py
+++ b/src/pkgcheck/checks/codingstyle.py
@@ -682,12 +682,15 @@ def _src_uri(self, var, node, value, pkg):
         for static_str, replacement in static_urls.items():
             yield StaticSrcUri(static_str, replacement=replacement, pkg=pkg)
 
+    def canonicalize_assign(self, value: str):
+        return value.strip("\"'").replace("\n", "").replace("\t", " ")
+
     def feed(self, pkg):
         keywords_lines = set()
         for node in pkg.global_query(bash.var_assign_query):
             name = pkg.node_str(node.child_by_field_name("name"))
             value_node = node.child_by_field_name("value")
-            value_str = pkg.node_str(value_node).strip("\"'") if value_node else ""
+            value_str = self.canonicalize_assign(pkg.node_str(value_node)) if value_node else ""
             if name in pkg.eapi.eclass_keys:
                 if not value_str:
                     lineno, _ = node.start_point
@@ -696,7 +699,7 @@ def feed(self, pkg):
                     for var_node, _ in bash.var_query.captures(value_node):
                         if (
                             pkg.node_str(var_node) == name
-                            and pkg.node_str(var_node.parent) == value_str
+                            and self.canonicalize_assign(pkg.node_str(var_node.parent)) == value_str
                             and var_node.next_named_sibling is None
                         ):
                             node_str = pkg.node_str(node).replace("\n", "").replace("\t", " ")
diff --git a/testdata/data/repos/standalone/MetadataVarCheck/SelfAssignment/expected.json b/testdata/data/repos/standalone/MetadataVarCheck/SelfAssignment/expected.json
index 314daa7f7..e77175027 100644
--- a/testdata/data/repos/standalone/MetadataVarCheck/SelfAssignment/expected.json
+++ b/testdata/data/repos/standalone/MetadataVarCheck/SelfAssignment/expected.json
@@ -2,4 +2,6 @@
 {"__class__": "SelfAssignment", "category": "MetadataVarCheck", "package": "SelfAssignment", "version": "0", "line": "RDEPEND=\"$RDEPEND\"", "lineno": 7}
 {"__class__": "SelfAssignment", "category": "MetadataVarCheck", "package": "SelfAssignment", "version": "0", "line": "RDEPEND=${RDEPEND}", "lineno": 8}
 {"__class__": "SelfAssignment", "category": "MetadataVarCheck", "package": "SelfAssignment", "version": "0", "line": "RDEPEND=$RDEPEND", "lineno": 9}
+{"__class__": "SelfAssignment", "category": "MetadataVarCheck", "package": "SelfAssignment", "version": "0", "line": "RDEPEND=\"${RDEPEND}\"", "lineno": 10}
 {"__class__": "SelfAssignment", "category": "MetadataVarCheck", "package": "SelfAssignment", "version": "0", "line": "RDEPEND=\" ${RDEPEND}\"", "lineno": 12}
+{"__class__": "SelfAssignment", "category": "MetadataVarCheck", "package": "SelfAssignment", "version": "0", "line": "RDEPEND=\" ${RDEPEND}\"", "lineno": 14}