diff --git a/libfuse/lib/fuse.cpp b/libfuse/lib/fuse.cpp
index 18e788a6..b143cd6e 100644
--- a/libfuse/lib/fuse.cpp
+++ b/libfuse/lib/fuse.cpp
@@ -3598,7 +3598,6 @@ static const struct fuse_opt fuse_lib_opts[] =
     FUSE_OPT_KEY("-d",		      FUSE_OPT_KEY_KEEP),
     FUSE_LIB_OPT("nogc",               nogc,1),
     FUSE_LIB_OPT("umask=",	      set_mode,1),
-    FUSE_LIB_OPT("umask=%o",	      umask,0),
     FUSE_LIB_OPT("noforget",           remember,-1),
     FUSE_LIB_OPT("remember=%u",        remember,0),
     FUSE_OPT_END