diff --git a/ICSharpCode.Decompiler/IL/Transforms/DeconstructionTransform.cs b/ICSharpCode.Decompiler/IL/Transforms/DeconstructionTransform.cs
index cb1a0477f..8a765b7e3 100644
--- a/ICSharpCode.Decompiler/IL/Transforms/DeconstructionTransform.cs
+++ b/ICSharpCode.Decompiler/IL/Transforms/DeconstructionTransform.cs
@@ -480,7 +480,7 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 			{
 				return conv == null || conv.Kind == ConversionKind.Nop;
 			}
-			if (c.IsNumericConversion)
+			if (c.IsNumericConversion && conv != null)
 			{
 				switch (conv.Kind)
 				{