diff --git a/launch/org.eclipse.cdt.launch/ChangeLog b/launch/org.eclipse.cdt.launch/ChangeLog
index 13dbf86c706..fa2cf310827 100644
--- a/launch/org.eclipse.cdt.launch/ChangeLog
+++ b/launch/org.eclipse.cdt.launch/ChangeLog
@@ -1,3 +1,8 @@
+2004-12-20 Alain Magloire
+
+	PR 81321
+	* src/org/eclipse/cdt/launch/internal/CPropertyTester.java
+
 2004-12-06 Mikhail Khodjaiants
 	The last character is missing in the launch configuration name generated 
 	from the binary file name.
diff --git a/launch/org.eclipse.cdt.launch/src/org/eclipse/cdt/launch/internal/CPropertyTester.java b/launch/org.eclipse.cdt.launch/src/org/eclipse/cdt/launch/internal/CPropertyTester.java
index e1711266f4c..c7bdde03628 100644
--- a/launch/org.eclipse.cdt.launch/src/org/eclipse/cdt/launch/internal/CPropertyTester.java
+++ b/launch/org.eclipse.cdt.launch/src/org/eclipse/cdt/launch/internal/CPropertyTester.java
@@ -40,9 +40,11 @@ public class CPropertyTester extends PropertyTester {
 	 */
 	private boolean isExecutable(Object receiver) {
 		ICElement celement = null;
-		IFile file = (IFile) ((IAdaptable)receiver).getAdapter(IResource.class);
-		if (file != null) {
-			celement = CoreModel.getDefault().create(file);
+		if (receiver instanceof IAdaptable) {
+			IFile file = (IFile) ((IAdaptable)receiver).getAdapter(IResource.class);
+			if (file != null) {
+				celement = CoreModel.getDefault().create(file);
+			}
 		}
 		return (celement != null && celement instanceof IBinary);
 	}