diff --git a/src/Workspaces/SharedUtilitiesAndExtensions/Compiler/Core/Utilities/SymbolEquivalenceComparer.EquivalenceVisitor.cs b/src/Workspaces/SharedUtilitiesAndExtensions/Compiler/Core/Utilities/SymbolEquivalenceComparer.EquivalenceVisitor.cs
index d09fb8fe9a6dc901186ca8eee31b6dcaef688c54..7f62b28b0a222b6f6e6d5db7f784077f345c9b6c 100644
--- a/src/Workspaces/SharedUtilitiesAndExtensions/Compiler/Core/Utilities/SymbolEquivalenceComparer.EquivalenceVisitor.cs
+++ b/src/Workspaces/SharedUtilitiesAndExtensions/Compiler/Core/Utilities/SymbolEquivalenceComparer.EquivalenceVisitor.cs
@@ -85,6 +85,8 @@ public bool AreEquivalent(ISymbol x, ISymbol y, Dictionary<INamedTypeSymbol, INa
                             return true;
                         }
                     }
+
+                    return false;
                 }
 
                 return AreEquivalentWorker(x, y, xKind, equivalentTypesWithDifferingAssemblies);