diff --git a/lib/valueflow.cpp b/lib/valueflow.cpp
index 33261c295..1297658cf 100644
--- a/lib/valueflow.cpp
+++ b/lib/valueflow.cpp
@@ -2106,6 +2106,10 @@ static bool evalAssignment(ValueFlow::Value &lhsValue, const std::string &assign
             lhsValue.intvalue |= rhsValue.intvalue;
         else if (assign == "^=")
             lhsValue.intvalue ^= rhsValue.intvalue;
+        else if (assign == "<<=")
+            lhsValue.intvalue <<= rhsValue.intvalue;
+        else if (assign == ">>=")
+            lhsValue.intvalue >>= rhsValue.intvalue;
         else
             return false;
     } else if (lhsValue.isFloatValue()) {
diff --git a/test/testvalueflow.cpp b/test/testvalueflow.cpp
index ecdba1536..43dd7111d 100644
--- a/test/testvalueflow.cpp
+++ b/test/testvalueflow.cpp
@@ -2530,6 +2530,20 @@ private:
                "    return x;\n"
                "}";
         ASSERT_EQUALS(true, testValueOfX(code, 4U, 123.45F + 67, 0.01F));
+
+        code = "void f() {\n"
+               "    int x = 123;\n"
+               "    x >>= 1;\n"
+               "    return x;\n"
+               "}";
+        ASSERT_EQUALS(true, testValueOfX(code, 4U, 61));
+
+        code = "void f() {\n"
+               "    int x = 123;\n"
+               "    x <<= 1;\n"
+               "    return x;\n"
+               "}";
+        ASSERT_EQUALS(true, testValueOfX(code, 4U, 246));
     }
 
     void valueFlowForwardCorrelatedVariables() {