diff --git a/src/isa-thumb.c b/src/isa-thumb.c
index cd38f3924..3d585b843 100644
--- a/src/isa-thumb.c
+++ b/src/isa-thumb.c
@@ -196,7 +196,8 @@ DEFINE_DATA_FORM_5_INSTRUCTION_THUMB(ASR2, \
 					cpu->gprs[rd] = 0; \
 				} \
 			} \
-		})
+		} \
+		THUMB_NEUTRAL_S( , , cpu->gprs[rd]))
 
 DEFINE_DATA_FORM_5_INSTRUCTION_THUMB(ADC, ARM_STUB)
 DEFINE_DATA_FORM_5_INSTRUCTION_THUMB(SBC, ARM_STUB)