diff --git a/lib/checkother.cpp b/lib/checkother.cpp
index 814b8edd9..0aa218a23 100644
--- a/lib/checkother.cpp
+++ b/lib/checkother.cpp
@@ -1763,8 +1763,10 @@ static bool isConstStatement(const Token *tok, bool cpp)
         return isWithoutSideEffects(cpp, tok->astOperand1()) && isConstStatement(tok->astOperand1(), cpp);
     if (Token::Match(tok, "( %type%"))
         return isConstStatement(tok->astOperand1(), cpp);
-    if (Token::Match(tok, ",|."))
+    if (Token::simpleMatch(tok, "."))
         return isConstStatement(tok->astOperand2(), cpp);
+    if (Token::simpleMatch(tok, ",")) // warn about const statement on rhs at the top level
+        return tok->astParent() ? isConstStatement(tok->astOperand1(), cpp) && isConstStatement(tok->astOperand2(), cpp) : isConstStatement(tok->astOperand2(), cpp);
     if (Token::simpleMatch(tok, "?") && Token::simpleMatch(tok->astOperand2(), ":")) // ternary operator
         return isConstStatement(tok->astOperand1(), cpp) && isConstStatement(tok->astOperand2()->astOperand1(), cpp) && isConstStatement(tok->astOperand2()->astOperand2(), cpp);
     return false;
diff --git a/test/testincompletestatement.cpp b/test/testincompletestatement.cpp
index 7bac14db0..950268f93 100644
--- a/test/testincompletestatement.cpp
+++ b/test/testincompletestatement.cpp
@@ -420,6 +420,12 @@ private:
         check("void f(bool b) { b ? true : false; }\n"); // #10865
         ASSERT_EQUALS("[test.cpp:1]: (warning) Redundant code: Found unused result of ternary operator.\n", errout.str());
 
+        check("struct S { void (*f)() = nullptr; };\n" // #10877
+              "void g(S* s) {\n"
+              "    (s->f == nullptr) ? nullptr : (s->f(), nullptr);\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
+
         check("void f(bool b) {\n"
               "    g() ? true : false;\n"
               "    true ? g() : false;\n"