diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index b46e7dd3e..93615f682 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -7165,7 +7165,7 @@ bool Tokenizer::duplicateDefinition(Token ** tokPtr, const Token * name) const
         if (end) {
             if (Token::simpleMatch(end, ") {")) { // function parameter ?
                 // make sure it's not a conditional
-                if (Token::Match(end->link()->previous(), "if|for|while|switch|BOOST_FOREACH"))
+                if (Token::Match(end->link()->previous(), "if|for|while|switch|BOOST_FOREACH") || Token::Match(end->link()->tokAt(-2), ":|,"))
                     return false;
 
                 // look backwards
diff --git a/test/testsimplifytokens.cpp b/test/testsimplifytokens.cpp
index c5592ac5d..50682d84c 100644
--- a/test/testsimplifytokens.cpp
+++ b/test/testsimplifytokens.cpp
@@ -3244,6 +3244,17 @@ private:
                              "void f() { if (aa) ; else if (bb==x) df; }\n";
         checkSimplifyEnum(code3);
         ASSERT_EQUALS("", errout.str());
+
+        // avoid false positive: Initializer list
+        const char code4[] = "struct S {\n"
+                             "    enum { E = 1 };\n"
+                             "    explicit S(float f)\n"
+                             "        : f_(f * E)\n"
+                             "    {}\n"
+                             "    float f_;\n"
+                             "};";
+        checkSimplifyEnum(code4);
+        ASSERT_EQUALS("", errout.str());
     }
 
     void enum23() { // ticket #2804