diff --git a/generate/generate.go b/generate/generate.go
index 72f3822..cf60739 100644
--- a/generate/generate.go
+++ b/generate/generate.go
@@ -221,7 +221,7 @@ func (this *Protocol) unmarshalMessage(out io.Writer, message Message) error {
 	fmt.Fprintf(out, "\t}\n")
 	if requiredTotal > 0 {
 		fmt.Fprintf(out,
-			"\tif foundRequired != %d { return hopp.ErrPairMissing }\n",
+			"\tif foundRequired != %d { return hopp.ErrTablePairMissing }\n",
 			requiredTotal)
 	}
 	fmt.Fprintf(out, "\treturn nil\n")