diff --git a/src/emu/cpu/m68000/m68kfpu.c b/src/emu/cpu/m68000/m68kfpu.c
index 2259c1b9c4d..19041927aac 100644
--- a/src/emu/cpu/m68000/m68kfpu.c
+++ b/src/emu/cpu/m68000/m68kfpu.c
@@ -1492,7 +1492,7 @@ static void fpgen_rm_reg(m68000_base_device *m68k, UINT16 w2)
 		{
 			REG_FP(m68k)[dst] = floatx80_scale(REG_FP(m68k)[dst], source);
 			SET_CONDITION_CODES(m68k, REG_FP(m68k)[dst]);
-			m68k->remaining_cycles -= 43;   // guess
+			m68k->remaining_cycles -= 46;   // (better?) guess
 			break;
 		}
 		case 0x27:      // FSGLMUL