diff --git a/crypto/txscript/test-data/script_tests-kip10.json b/crypto/txscript/test-data/script_tests-kip10.json
index 22fafe6c9..947c8810d 100644
--- a/crypto/txscript/test-data/script_tests-kip10.json
+++ b/crypto/txscript/test-data/script_tests-kip10.json
@@ -4413,7 +4413,7 @@
     "1SUB",
     "",
     "UNKNOWN_ERROR",
-    "Interpret 9 byte integer as bool"
+    "result of math operation can't exceed 8 bytes"
   ],
   [
     "1",