diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildproperties/BuildPropertiesMessages.properties b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildproperties/BuildPropertiesMessages.properties
index 0c778a78131..d1037c2d718 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildproperties/BuildPropertiesMessages.properties
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildproperties/BuildPropertiesMessages.properties
@@ -9,7 +9,7 @@
 # Intel Corporation - Initial API and implementation
 ###############################################################################
 BuildProperty.0=the specified type does not exist
-BuildProperty.1=invalid value id
+BuildProperty.1=Unsupported property id=
 BuildPropertyManager.8=property type of the specified id already exists and has different name
 BuildPropertyManager.9=specified property type does not exist
 BuildPropertyManager.10=property value of the specified id already exists and has different name
diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildproperties/BuildProperty.java b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildproperties/BuildProperty.java
index 338494b9f85..57036b47110 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildproperties/BuildProperty.java
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildproperties/BuildProperty.java
@@ -57,7 +57,7 @@ public class BuildProperty implements IBuildProperty{
 		if(value == null)
 			throw new CoreException(new Status(IStatus.ERROR,
 				ManagedBuilderCorePlugin.getUniqueIdentifier(),
-				BuildPropertiesMessages.getString("BuildProperty.1"))); //$NON-NLS-1$
+				BuildPropertiesMessages.getString("BuildProperty.1")+id)); //$NON-NLS-1$
 
 		setValue(value);
 	}