diff --git a/lib/hwasan/scripts/hwasan_symbolize b/lib/hwasan/scripts/hwasan_symbolize
index f67dbe4..f4c946e 100755
--- a/lib/hwasan/scripts/hwasan_symbolize
+++ b/lib/hwasan/scripts/hwasan_symbolize
@@ -35,7 +35,7 @@
 
   def __open_pipe(self):
     if not self.__pipe:
-      self.__pipe = subprocess.Popen([self.__path, "-inlining", "-functions"],
+      self.__pipe = subprocess.Popen([self.__path, "--inlining", "--functions"],
                                      stdin=subprocess.PIPE, stdout=subprocess.PIPE)
 
   class __EOF: