diff --git a/qemu/target-m68k/translate.c b/qemu/target-m68k/translate.c
index 92b5e313..889a1940 100644
--- a/qemu/target-m68k/translate.c
+++ b/qemu/target-m68k/translate.c
@@ -2232,7 +2232,7 @@ DISAS_INSN(cmpa)
     }
     SRC_EA(env, src, opsize, 1, NULL);
     reg = AREG(insn, 9);
-    gen_update_cc_cmp(s, reg, src, opsize);
+    gen_update_cc_cmp(s, reg, src, OS_LONG);
 }
 
 DISAS_INSN(eor)