diff --git a/src/Gui/InputField.cpp b/src/Gui/InputField.cpp
index 5029e578d0..6839c10ce4 100644
--- a/src/Gui/InputField.cpp
+++ b/src/Gui/InputField.cpp
@@ -652,7 +652,7 @@ void InputField::focusOutEvent(QFocusEvent *event)
             actQuantity = actQuantity * factor;
         }
     }
-    catch (const Base::ParserError& e) {
+    catch (const Base::ParserError&) {
         // do nothing, let apply the last known good value
     }
     this->setText(actQuantity.getUserString());