diff --git a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/sourcelookup/CProjectSourceLocation.java b/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/sourcelookup/CProjectSourceLocation.java
index 4a989ea9b80..070396d8fd3 100644
--- a/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/sourcelookup/CProjectSourceLocation.java
+++ b/debug/org.eclipse.cdt.debug.core/src/org/eclipse/cdt/debug/core/sourcelookup/CProjectSourceLocation.java
@@ -128,7 +128,7 @@ public class CProjectSourceLocation implements ICSourceLocation
 	private Object findFileByRelativePath( String fileName )
 	{
 		IPath path = getProject().getLocation().append( fileName );
-		return getProject().findMember( path );
+		return findFileByAbsolutePath( path.toOSString() );
 	}
 
 	/**