diff --git a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/cdtvariables/CdtMacroSupplier.java b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/cdtvariables/CdtMacroSupplier.java
index 94b82c151ba..8969a13fad6 100644
--- a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/cdtvariables/CdtMacroSupplier.java
+++ b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/internal/core/cdtvariables/CdtMacroSupplier.java
@@ -436,7 +436,7 @@ public class CdtMacroSupplier extends CoreMacroSupplierBase {
 			macro = new CdtVariable(macroName,ICdtVariable.VALUE_TEXT,version);
 		}
 		else if("CDTVersion".equals(macroName)){	//$NON-NLS-1$
-			String version = CCorePlugin.getDefault().getBundle().getHeaders().get(org.osgi.framework.Constants.BUNDLE_VERSION);
+			String version = (String) CCorePlugin.getDefault().getBundle().getHeaders().get(org.osgi.framework.Constants.BUNDLE_VERSION);
 			macro = new CdtVariable(macroName,ICdtVariable.VALUE_TEXT,version);
 		}
 /*		else if("MBSVersion".equals(macroName)){	//$NON-NLS-1$