diff --git a/lib/astutils.cpp b/lib/astutils.cpp
index 3200c61a2..4e2783b4f 100644
--- a/lib/astutils.cpp
+++ b/lib/astutils.cpp
@@ -1555,9 +1555,9 @@ bool isOppositeExpression(bool cpp, const Token * const tok1, const Token * cons
         return false;
     if (isOppositeCond(true, cpp, tok1, tok2, library, pure, followVar, errors))
         return true;
-    if (tok1->isUnaryOp("-"))
+    if (tok1->isUnaryOp("-") && !(tok2->astParent() && tok2->astParent()->tokType() == Token::eBitOp))
         return isSameExpression(cpp, true, tok1->astOperand1(), tok2, library, pure, followVar, errors);
-    if (tok2->isUnaryOp("-"))
+    if (tok2->isUnaryOp("-") && !(tok2->astParent() && tok2->astParent()->tokType() == Token::eBitOp))
         return isSameExpression(cpp, true, tok2->astOperand1(), tok1, library, pure, followVar, errors);
     return false;
 }
diff --git a/test/testother.cpp b/test/testother.cpp
index 2134696b2..2b2380ff2 100644
--- a/test/testother.cpp
+++ b/test/testother.cpp
@@ -5773,6 +5773,15 @@ private:
               "    if( *a == !(b) ) {}\n"
               "}\n");
         ASSERT_EQUALS("[test.cpp:2] -> [test.cpp:3]: (style) Opposite expression on both sides of '=='.\n", errout.str());
+
+        check("void f(uint16_t u) {\n" // #9342
+              "    if (u != (u & -u))\n"
+              "        return false;\n"
+              "    if (u != (-u & u))\n"
+              "        return false;\n"
+              "    return true;\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void duplicateVarExpression() {