diff --git a/src/Editor/CPropertyNameValidator.h b/src/Editor/CPropertyNameValidator.h
index ab3876a2..303baea2 100644
--- a/src/Editor/CPropertyNameValidator.h
+++ b/src/Editor/CPropertyNameValidator.h
@@ -10,7 +10,7 @@ class CPropertyNameValidator : public QValidator
     Q_OBJECT
 
     /** The property being validated against */
-    IProperty* mpProperty;
+    IProperty* mpProperty = nullptr;
 
     /** String to use to override the type name. If empty, the property's normal type name is used. */
     QString mTypeNameOverride;