diff --git a/lib/checkclass.cpp b/lib/checkclass.cpp
index 8ae1f5529..8abfa8bb0 100644
--- a/lib/checkclass.cpp
+++ b/lib/checkclass.cpp
@@ -805,7 +805,7 @@ static bool checkFunctionUsage(const std::string& name, const Scope* scope)
         if (func->functionScope) {
             if (Token::Match(func->tokenDef, "%var% (")) {
                 for (const Token *ftok = func->tokenDef->tokAt(2); ftok && ftok->str() != ")"; ftok = ftok->next()) {
-                    if (Token::Match(ftok, "= %var% (") && ftok->strAt(1) == name)
+                    if (Token::Match(ftok, "= %var% [(,)]") && ftok->strAt(1) == name)
                         return true;
                     if (ftok->str() == "(")
                         ftok = ftok->link();
diff --git a/test/testunusedprivfunc.cpp b/test/testunusedprivfunc.cpp
index 6b463413b..956e25b42 100644
--- a/test/testunusedprivfunc.cpp
+++ b/test/testunusedprivfunc.cpp
@@ -45,6 +45,7 @@ private:
         TEST_CASE(func_pointer3);
         TEST_CASE(func_pointer4); // ticket #2807
         TEST_CASE(func_pointer5); // ticket #2233
+        TEST_CASE(func_pointer6); // ticket #4787
 
         TEST_CASE(ctor);
         TEST_CASE(ctor2);
@@ -314,6 +315,18 @@ private:
     }
 
 
+    void func_pointer6() { // #4787
+        check("class Test {\n"
+              "private:\n"
+              "    static void a(const char* p) { }\n"
+              "public:\n"
+              "    void test(void* f = a) {\n"
+              "        f(\"test\");\n"
+              "    }\n"
+              "};");
+        ASSERT_EQUALS("", errout.str());
+    }
+
 
     void ctor() {
         check("class PrivateCtor\n"