diff --git a/lib/symboldatabase.cpp b/lib/symboldatabase.cpp
index a7dd01546..b2e2c52d4 100644
--- a/lib/symboldatabase.cpp
+++ b/lib/symboldatabase.cpp
@@ -1975,7 +1975,11 @@ Scope::Scope(SymbolDatabase *check_, const Token *classDef_, Scope *nestedIn_) :
         type = Scope::eGlobal;
     } else if (classDef->str() == "class") {
         type = Scope::eClass;
-        className = classDef->next()->str();
+        // skip over qualification if present
+        const Token *nameTok = classDef->next();
+        while (nameTok && Token::Match(nameTok, "%type% ::"))
+            nameTok = nameTok->tokAt(2);
+        className = nameTok->str();
     } else if (classDef->str() == "struct") {
         type = Scope::eStruct;
         // anonymous and unnamed structs don't have a name
diff --git a/test/testconstructors.cpp b/test/testconstructors.cpp
index 27bb0203d..52db57b8d 100644
--- a/test/testconstructors.cpp
+++ b/test/testconstructors.cpp
@@ -61,6 +61,7 @@ private:
         TEST_CASE(simple6); // ticket #4085 - uninstantiated template class
         TEST_CASE(simple7); // ticket #4531
         TEST_CASE(simple8);
+        TEST_CASE(simple9); // ticket #4574
 
         TEST_CASE(initvar_with_this);       // BUG 2190300
         TEST_CASE(initvar_if);              // BUG 2190290
@@ -320,6 +321,16 @@ private:
                       "[test.cpp:3]: (style) The class 'Wilma' does not have a constructor.\n", errout.str());
     }
 
+    void simple9() { // ticket #4574
+        check("class Unknown::Fred {\n"
+              "public:\n"
+              "    Fred() : x(0) { }\n"
+              "private:\n"
+              "    int x;\n"
+              "};");
+        ASSERT_EQUALS("", errout.str());
+    }
+
     void initvar_with_this() {
         check("struct Fred\n"
               "{\n"