diff --git a/src/conf.c b/src/conf.c
index d4d2663..762f862 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -64,8 +64,8 @@ static void print_usage(char** argv) {
   LOG(" -f,     --fullscreen   - Fullscreen");
   LOG(" -F,     --fps          - Limit frames per second");
   LOG(" -d s,   --data s       - Set the data file to be s");
-  LOG(" -x n                   - Set width to n");
-  LOG(" -y n                   - Set height to n");
+  LOG(" -W n                   - Set width to n");
+  LOG(" -H n                   - Set height to n");
   LOG(" -j n,   --joystick n   - Use joystick (n)");
   LOG(" -J s,   --joystick s   - Use joystick whose name contains (s)");
   LOG(" -S,     --Sound        - Forces sound.");