diff --git a/lib/checkother.cpp b/lib/checkother.cpp
index a18ae900a..d901c1f90 100644
--- a/lib/checkother.cpp
+++ b/lib/checkother.cpp
@@ -106,7 +106,7 @@ void CheckOther::clarifyCalculation()
             }
             else if (cond->isName() || cond->isNumber())
             {
-                if (Token::Match(cond->previous(),("return|+|-|,|(|"+op).c_str()))
+                if (Token::Match(cond->previous(),("return|=|+|-|,|(|"+op).c_str()))
                     clarifyCalculationError(cond, op);
             }
         }
diff --git a/test/testother.cpp b/test/testother.cpp
index addc62bbe..b1410d6d6 100644
--- a/test/testother.cpp
+++ b/test/testother.cpp
@@ -2296,6 +2296,11 @@ private:
               "    std::cout << x << 1 ? 2 : 3;\n"
               "}");
         ASSERT_EQUALS("[test.cpp:2]: (style) Clarify calculation precedence for << and ?\n", errout.str());
+
+        check("void f() {\n"
+              "    int ab = a - b ? 2 : 3;\n"
+              "}");
+        ASSERT_EQUALS("[test.cpp:2]: (style) Clarify calculation precedence for - and ?\n", errout.str());
     }
 
     // clarify conditions with = and comparison