diff --git a/src/arm/isa-arm.c b/src/arm/isa-arm.c
index 576eeb874..b3bb3c9da 100644
--- a/src/arm/isa-arm.c
+++ b/src/arm/isa-arm.c
@@ -287,7 +287,7 @@ ATTRIBUTE_NOINLINE static void _neutralS(struct ARMCore* cpu, int32_t d) {
 		SHIFTER(cpu, opcode); \
 		int rd = (opcode >> 12) & 0xF; \
 		int rn = (opcode >> 16) & 0xF; \
-		int32_t n = cpu->gprs[rn]; \
+		int32_t n ATTRIBUTE_UNUSED = cpu->gprs[rn]; \
 		if (UNLIKELY(rn == ARM_PC && (opcode & 0x02000010) == 0x00000010)) { \
 			n += WORD_SIZE_ARM; \
 		} \
@@ -358,7 +358,7 @@ ATTRIBUTE_NOINLINE static void _neutralS(struct ARMCore* cpu, int32_t d) {
 		uint32_t address; \
 		int rn = (opcode >> 16) & 0xF; \
 		int rd = (opcode >> 12) & 0xF; \
-		int32_t d = cpu->gprs[rd]; \
+		int32_t d ATTRIBUTE_UNUSED = cpu->gprs[rd]; \
 		if (UNLIKELY(rd == ARM_PC)) { \
 			d += WORD_SIZE_ARM; \
 		} \