diff --git a/src/mi/backtrace.c b/src/mi/backtrace.c
index b5205356..91d6597a 100644
--- a/src/mi/backtrace.c
+++ b/src/mi/backtrace.c
@@ -76,6 +76,6 @@ unw_backtrace (void **buffer, int size)
 }
 
 extern int backtrace (void **buffer, int size)
-  WEAK __attribute__((alias("unw_backtrace")));
+  WEAK ALIAS(unw_backtrace);
 
 #endif /* !UNW_REMOTE_ONLY */
diff --git a/tests/crasher.c b/tests/crasher.c
index 2cf65e8d..24c78054 100644
--- a/tests/crasher.c
+++ b/tests/crasher.c
@@ -87,7 +87,7 @@ write_maps(char *fname)
 #endif
 
 #ifdef __GNUC__
-int c(int x) NOINLINE __attribute__((alias("b")));
+int c(int x) NOINLINE ALIAS(b);
 #define compiler_barrier() asm volatile("");
 #else
 int c(int x);