diff --git a/python/src/com/jetbrains/python/inspections/PyAugmentAssignmentInspection.java b/python/src/com/jetbrains/python/inspections/PyAugmentAssignmentInspection.java
index 5762fa6f4b4a..873a2969a14b 100644
--- a/python/src/com/jetbrains/python/inspections/PyAugmentAssignmentInspection.java
+++ b/python/src/com/jetbrains/python/inspections/PyAugmentAssignmentInspection.java
@@ -72,7 +72,7 @@ public class PyAugmentAssignmentInspection extends PyInspection {
                                                     PyTokenTypes.EXP);
         final TokenSet commutativeOperations = TokenSet.create(PyTokenTypes.PLUS, PyTokenTypes.MULT);
         if ((operations.contains(op) && !changedParts) || (changedParts && commutativeOperations.contains(op))) {
-          if (leftExpression instanceof PyReferenceExpression || leftExpression instanceof PySubscriptionExpression) {
+          if (leftExpression.getText().equals(targetText) && (leftExpression instanceof PyReferenceExpression || leftExpression instanceof PySubscriptionExpression)) {
             final PyType type = myTypeEvalContext.getType(rightExpression);
             if (type != null && !PyTypeChecker.isUnknown(type)) {
               final PyBuiltinCache cache = PyBuiltinCache.getInstance(rightExpression);
diff --git a/python/testData/inspections/PyAugmentAssignmentInspection/negativeName.py b/python/testData/inspections/PyAugmentAssignmentInspection/negativeName.py
new file mode 100644
index 000000000000..13c97bbdebe4
--- /dev/null
+++ b/python/testData/inspections/PyAugmentAssignmentInspection/negativeName.py
@@ -0,0 +1,2 @@
+a = "test"
+var = a + "some "
diff --git a/python/testSrc/com/jetbrains/python/inspections/PyAugmentAssignmentInspectionTest.java b/python/testSrc/com/jetbrains/python/inspections/PyAugmentAssignmentInspectionTest.java
index fc87de23f50f..2050aedb7881 100644
--- a/python/testSrc/com/jetbrains/python/inspections/PyAugmentAssignmentInspectionTest.java
+++ b/python/testSrc/com/jetbrains/python/inspections/PyAugmentAssignmentInspectionTest.java
@@ -19,6 +19,10 @@ public class PyAugmentAssignmentInspectionTest extends PyTestCase {
     doTest();
   }
 
+  public void testNegativeName() {
+    doTest();
+  }
+
   public void testNegative() {
     doTest();
   }