diff --git a/src/compositor-drm.c b/src/compositor-drm.c
index 119b6c5d..a47b4534 100644
--- a/src/compositor-drm.c
+++ b/src/compositor-drm.c
@@ -1551,7 +1551,7 @@ create_gbm_device(int fd)
 }
 
 /* When initializing EGL, if the preferred buffer format isn't available
- * we may be able to susbstitute an ARGB format for an XRGB one.
+ * we may be able to substitute an ARGB format for an XRGB one.
  *
  * This returns 0 if substitution isn't possible, but 0 might be a
  * legitimate format for other EGL platforms, so the caller is