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-rw-r--r--os/utils.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/os/utils.c b/os/utils.c
index bc5e7df4d..ed7581e1c 100644
--- a/os/utils.c
+++ b/os/utils.c
@@ -529,6 +529,7 @@ UseMsg(void)
ErrorF("-cc int default color visual class\n");
ErrorF("-nocursor disable the cursor\n");
ErrorF("-core generate core dump on fatal error\n");
+ ErrorF("-displayfd fd file descriptor to write display number to when ready to connect\n");
ErrorF("-dpi int screen resolution in dots per inch\n");
#ifdef DPMSExtension
ErrorF("-dpms disables VESA DPMS monitor control\n");