diff --git a/src/disasm.rs b/src/disasm.rs
index 21675bc..7a62763 100644
--- a/src/disasm.rs
+++ b/src/disasm.rs
@@ -570,7 +570,7 @@ impl Disassembler {
 
                 0xC0..=0xC1 => return Err(DisasmError::OpcodeUndefined(opcode)),
 
-                0xC2 => Mnemonic::RETIw(self.parse_word()),
+                0xC2 => Mnemonic::RET_Iw(self.parse_word()),
                 0xC3 => Mnemonic::RET,
 
                 0xC4..=0xC5 => todo!("LES and LDS not yet implemented"),
diff --git a/src/instructions.rs b/src/instructions.rs
index 270a187..36c9ce4 100644
--- a/src/instructions.rs
+++ b/src/instructions.rs
@@ -257,7 +257,7 @@ pub enum Mnemonic {
     SCASB,
     SCASW,
     // RET
-    RETIw(Word),
+    RET_Iw(Word),
     RET,
     RETF_Iw(Word),
     RETF,