diff --git a/checkmemoryleak.cpp b/checkmemoryleak.cpp
index 7aba346d0..0a92cdaf9 100644
--- a/checkmemoryleak.cpp
+++ b/checkmemoryleak.cpp
@@ -579,7 +579,7 @@ TOKEN *CheckMemoryLeakClass::getcode(const TOKEN *tok, std::list<const TOKEN *>
         // Assignment..
         if ( TOKEN::Match(tok,"[)=] %var1% [+;)]", varnames) ||
              TOKEN::Match(tok, "%var1% +=|-=", varnames) ||
-             TOKEN::Match(tok, "+= %var1% ;", varnames) )
+             TOKEN::Match(tok, "+=|<< %var1% ;", varnames) )
             addtoken("use");
 
         // Investigate function calls..