diff --git a/lrzip_private.h b/lrzip_private.h
index bf3304a..e513163 100644
--- a/lrzip_private.h
+++ b/lrzip_private.h
@@ -48,6 +48,8 @@
 # include <alloca.h>
 #elif defined _AIX
 # define alloca __alloca
+#elif defined __GNUC__
+# define alloca __builtin_alloca
 #elif defined _MSC_VER
 # include <malloc.h>
 # define alloca _alloca