diff --git a/Source/DSPSpy/tests/dsp_base.inc b/Source/DSPSpy/tests/dsp_base.inc
index a1c6f33db2..9cb0662b77 100644
--- a/Source/DSPSpy/tests/dsp_base.inc
+++ b/Source/DSPSpy/tests/dsp_base.inc
@@ -348,7 +348,7 @@ dump_memory:
 	mrr		$ar2, $ar0
 	mrr		$ar0, $ac1.m
 	
-	addis	$acc0, #0x1
+	addis	$ac0.m, #0x1
 
 _fill_loop2:
 	nop