diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 5333192c5..63316d81f 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -7648,10 +7648,10 @@ void Tokenizer::simplifyEnum()
                         ev = &(enumValues.find(tok2->str())->second);
                         if (!duplicateDefinition(&tok2, ev->name)) {
                             if (tok2->strAt(-1) == "::" ||
-                                Token::Match(tok2->next(), "::|[")) {
+                                Token::Match(tok2->next(), "::|[|=")) {
                                 // Don't replace this enum if:
                                 // * it's preceded or followed by "::"
-                                // * it's followed by "["
+                                // * it's followed by "[" or "="
                             } else {
                                 simplify = true;
                                 ev = &(enumValues.find(tok2->str())->second);
diff --git a/test/testsimplifytokens.cpp b/test/testsimplifytokens.cpp
index 83608e2d7..1c6507bf6 100644
--- a/test/testsimplifytokens.cpp
+++ b/test/testsimplifytokens.cpp
@@ -373,6 +373,7 @@ private:
         TEST_CASE(enum40);
         TEST_CASE(enum41); // ticket #5212 (valgrind errors during enum simplification)
         TEST_CASE(enum42); // ticket #5182 (template function call in enum value)
+        TEST_CASE(enum43); // lhs in assignment
         TEST_CASE(enumscope1); // ticket #3949
         TEST_CASE(duplicateDefinition); // ticket #3565
         TEST_CASE(invalid_enum); // #5600
@@ -7161,6 +7162,12 @@ private:
         ASSERT_EQUALS("a = f < int , 2 > ( ) ;", checkSimplifyEnum(code));
     }
 
+    void enum43() { // lhs in assignment
+        const char code[] = "enum { A, B };\n"
+                            "A = 1;";
+        ASSERT_EQUALS("A = 1 ;", checkSimplifyEnum(code));
+    }
+
     void enumscope1() { // #3949 - don't simplify enum from one function in another function
         const char code[] = "void foo() { enum { A = 0, B = 1 }; }\n"
                             "void bar() { int a = A; }";