diff --git a/top/include/lk/compiler.h b/top/include/lk/compiler.h
index 8bdb49c8..60c0a812 100644
--- a/top/include/lk/compiler.h
+++ b/top/include/lk/compiler.h
@@ -20,10 +20,14 @@
 #define likely(x)       __builtin_expect(!!(x), 1)
 #define unlikely(x)     __builtin_expect(!!(x), 0)
 #define __UNUSED __attribute__((__unused__))
+#if __clang__
 // Per https://clang.llvm.org/docs/AttributeReference.html#used
 // __used__ does not prevent linkers from removing unused sections
 // (if --gc-sections is passed). Need to specify "retain" as well.
 #define __USED __attribute__((__used__, retain))
+#else
+#define __USED __attribute__((__used__))
+#endif
 #define __PACKED __attribute__((packed))
 #define __ALIGNED(x) __attribute__((aligned(x)))
 #define __PRINTFLIKE(__fmt,__varargs) __attribute__((__format__ (__printf__, __fmt, __varargs)))