diff --git a/src/include/arch_arm_32/arch_intrinsics.h b/src/include/arch_arm_32/arch_intrinsics.h
index 7451c6f..f7ab29b 100644
--- a/src/include/arch_arm_32/arch_intrinsics.h
+++ b/src/include/arch_arm_32/arch_intrinsics.h
@@ -10,7 +10,7 @@
 static __inline__ __attribute((always_inline,unused))
 uint32_t word_is_zero(uint32_t a) {
     uint32_t ret;
-    asm("subs %0, %1, #1;\n\tsbc %0, %0, %0" : "=r"(ret) : "r"(a) : "cc");
+    __asm__("subs %0, %1, #1;\n\tsbc %0, %0, %0" : "=r"(ret) : "r"(a) : "cc");
     return ret;
 }