diff --git a/lib/bcoin/script.js b/lib/bcoin/script.js
index 8b9db1e7..5d658343 100644
--- a/lib/bcoin/script.js
+++ b/lib/bcoin/script.js
@@ -3921,6 +3921,18 @@ Script.encode = function encode(code, writer) {
       if (op.length === 0) {
         p.writeU8(opcodes.OP_0);
       } else if (op.length <= 0x4b) {
+        if (op.length === 1) {
+          if (op[0] === 0) {
+            p.writeU8(opcodes.OP_0);
+            continue;
+          } else if (op[0] >= 1 && op[0] <= 16) {
+            p.writeU8(op[0] + 0x50);
+            continue;
+          } else if (op[0] === 0xff) {
+            p.writeU8(opcodes.OP_1NEGATE);
+            continue;
+          }
+        }
         p.writeU8(op.length);
         p.writeBytes(op);
       } else if (op.length <= 0xff) {