diff --git a/core/org.eclipse.cdt.core/ChangeLog b/core/org.eclipse.cdt.core/ChangeLog
index d2d0b9b33de..f78923d5fcb 100644
--- a/core/org.eclipse.cdt.core/ChangeLog
+++ b/core/org.eclipse.cdt.core/ChangeLog
@@ -1,3 +1,10 @@
+2004-04-13 David Inglis
+
+	Since the binary runner and the CModelManager adds binarys we need to make sure
+	the child was not already added in the info.
+	
+	* src/org/eclipse/cdt/internal/core/model/CElementInfo.java
+
 2004-04-13 Alain Magloire
 
 	When encoding the PathEntry, make the "path" attribute project relative if
diff --git a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CElementInfo.java b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CElementInfo.java
index ef4c15cddaf..099ecccd1c2 100644
--- a/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CElementInfo.java
+++ b/core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/CElementInfo.java
@@ -45,7 +45,9 @@ class CElementInfo {
 	}
 
 	protected void addChild(ICElement child) {
-		fChildren.add(child);
+		if (!fChildren.contains(child)) {
+			fChildren.add(child);
+		}
 	}
 
 	protected ICElement[] getChildren() {