diff --git a/primitives/src/opcodes.rs b/primitives/src/opcodes.rs
index bd9e8ce86..5da0295d3 100644
--- a/primitives/src/opcodes.rs
+++ b/primitives/src/opcodes.rs
@@ -565,6 +565,12 @@ mod tests {
         assert_eq!(s, "    OP_NOP");
     }
 
+    #[test]
+    fn ordinary_op_code() {
+        let ordinary_op = Ordinary::from_opcode(OP_PUSHDATA1).expect("0x4C");
+        assert_eq!(ordinary_op.to_u8(), 0x4C_u8);
+    }
+
     #[test]
     fn decode_pushnum() {
         // Test all possible opcodes