diff --git a/lib/checksizeof.cpp b/lib/checksizeof.cpp
index d8bd3e7a9..4f4a610ff 100644
--- a/lib/checksizeof.cpp
+++ b/lib/checksizeof.cpp
@@ -251,7 +251,7 @@ void CheckSizeof::sizeofCalculation()
     for (const Token *tok = _tokenizer->tokens(); tok; tok = tok->next()) {
         if (Token::simpleMatch(tok, "sizeof (")) {
             const Token *argument = tok->next()->astOperand2();
-            if (argument && argument->isCalculation(true) && (!argument->isExpandedMacro() || printInconclusive))
+            if (argument && argument->isCalculation() && (!argument->isExpandedMacro() || printInconclusive))
                 sizeofCalculationError(argument, argument->isExpandedMacro());
         }
     }
diff --git a/lib/token.cpp b/lib/token.cpp
index b84744b7a..acb7c25cd 100644
--- a/lib/token.cpp
+++ b/lib/token.cpp
@@ -1136,19 +1136,8 @@ void Token::astOperand2(Token *tok)
     _astOperand2 = tok;
 }
 
-bool Token::isCalculation(bool goDownwards) const
+bool Token::isCalculation() const
 {
-    if (goDownwards && Token::Match(this, "[|(|,")) {
-        bool ret = false;
-        if (this->astOperand1())
-            ret = this->astOperand1()->isCalculation(true);
-        if (ret)
-            return true;
-        if (this->astOperand2())
-            ret = this->astOperand2()->isCalculation(true);
-        return ret;
-
-    }
     if (!Token::Match(this, "%cop%|++|--"))
         return false;
 
diff --git a/lib/token.h b/lib/token.h
index 7e81aff6a..69867f1ea 100644
--- a/lib/token.h
+++ b/lib/token.h
@@ -872,10 +872,9 @@ public:
      * For '*' and '&' tokens it is looked up if this is a
      * dereference or address-of. A dereference or address-of is not
      * counted as a calculation.
-     * @param goDownwards the function will look for calculations in all children of the tree
      * @return returns true if current token is a calculation
      */
-    bool isCalculation(bool goDownwards = false) const;
+    bool isCalculation() const;
 
     void clearAst() {
         _astOperand1 = _astOperand2 = _astParent = NULL;
diff --git a/test/testsizeof.cpp b/test/testsizeof.cpp
index cc5908e41..d681eb179 100644
--- a/test/testsizeof.cpp
+++ b/test/testsizeof.cpp
@@ -108,18 +108,6 @@ private:
 
         check("sizeof(--foo)");
         ASSERT_EQUALS("[test.cpp:1]: (warning) Found calculation inside sizeof().\n", errout.str());
-
-        check("sizeof(bar(1, 2, --foo, 3, 4))");
-        ASSERT_EQUALS("[test.cpp:1]: (warning) Found calculation inside sizeof().\n", errout.str());
-
-        check("sizeof( int32_t[ i++ ] );");
-        ASSERT_EQUALS("[test.cpp:1]: (warning) Found calculation inside sizeof().\n", errout.str());
-
-        check("sizeof(a[b + 2])");
-        ASSERT_EQUALS("[test.cpp:1]: (warning) Found calculation inside sizeof().\n", errout.str());
-
-        check("sizeof((2 + a)[b])");
-        ASSERT_EQUALS("[test.cpp:1]: (warning) Found calculation inside sizeof().\n", errout.str());
     }
 
     void sizeofForArrayParameter() {