diff --git a/src/test/data/script_tests.json b/src/test/data/script_tests.json
--- a/src/test/data/script_tests.json
+++ b/src/test/data/script_tests.json
@@ -899,6 +899,7 @@
 ["0x05 0xabcdef4280 4", "NUM2BIN 0x04 0xabcdefc2 EQUAL", "P2SH,STRICTENC,MONOLITH_OPCODES", "OK", "Item size reduction"],
 ["0x01 0x80 0", "NUM2BIN 0 EQUAL", "P2SH,STRICTENC,MONOLITH_OPCODES", "OK", "Negative zero"],
 ["0x01 0x80 3", "NUM2BIN 0x03 0x000000 EQUAL", "P2SH,STRICTENC,MONOLITH_OPCODES", "OK", "Negative zero, larger output"],
+["0x05 0xabcdef4243 5", "NUM2BIN 0x05 0xabcdef4243 EQUAL", "P2SH,STRICTENC,MONOLITH_OPCODES", "OK", "NUM2BIN where len(a) > 4"],
 
 ["BIN2NUM"],
 ["", "BIN2NUM 0 EQUAL", "P2SH,STRICTENC,MONOLITH_OPCODES", "INVALID_STACK_OPERATION", "BIN2NUM, empty stack"],