diff --git a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Breakpoints/Breakpoint.cs b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Breakpoints/Breakpoint.cs
index 52464e618f..738a1de443 100644
--- a/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Breakpoints/Breakpoint.cs
+++ b/src/AddIns/Misc/Debugger/Debugger.Core/Project/Src/Breakpoints/Breakpoint.cs
@@ -91,7 +91,7 @@ namespace Debugger
 		
 		public override bool Equals(object obj) 
 		{
-			return base.Equals(obj) || corBreakpoint.Equals(obj);
+			return base.Equals(obj) || (corBreakpoint != null && corBreakpoint.Equals(obj));
 		}
 		
 		public override int GetHashCode()