diff --git a/src/plugins/qmljseditor/qmljscodecompletion.cpp b/src/plugins/qmljseditor/qmljscodecompletion.cpp
index f27ca6bfb02..4219b3b302c 100644
--- a/src/plugins/qmljseditor/qmljscodecompletion.cpp
+++ b/src/plugins/qmljseditor/qmljscodecompletion.cpp
@@ -588,6 +588,10 @@ bool CodeCompletion::isDelimiter(QChar ch) const
     case ':':
     case ';':
     case ',':
+    case '+':
+    case '-':
+    case '*':
+    case '/':
         return true;
 
     default: