diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/language/LanguageMappingWidget.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/language/LanguageMappingWidget.java
index d092e9a4740..e9cd419f6a2 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/language/LanguageMappingWidget.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/language/LanguageMappingWidget.java
@@ -102,6 +102,7 @@ public abstract class LanguageMappingWidget {
 		});
 
 		GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, false);
+		gridData.widthHint = MINIMUM_COLUMN_WIDTH * 2;
 		gridData.horizontalSpan = 2;
 		link.setLayoutData(gridData);
 	}