diff --git a/cpu.cpp b/cpu.cpp
index ee87c21..397ef36 100644
--- a/cpu.cpp
+++ b/cpu.cpp
@@ -833,7 +833,7 @@ bool cpu::single_operand_instructions(const uint16_t instr)
 					 set_flags = putGAM(g_dst, v);
 
 					 if (set_flags) {
-						 setPSW_flags_nzv(v, wm_word);
+						 setPSW_flags_nzv(v, wm_byte);
 						 setPSW_c(false);
 					 }