diff --git a/xf86drm.c b/xf86drm.c
index 5f587d96..45aa5fc9 100644
--- a/xf86drm.c
+++ b/xf86drm.c
@@ -2942,7 +2942,7 @@ static int drmGetMaxNodeName(void)
            MAX3(sizeof(DRM_PRIMARY_MINOR_NAME),
                 sizeof(DRM_CONTROL_MINOR_NAME),
                 sizeof(DRM_RENDER_MINOR_NAME)) +
-           3 /* lenght of the node number */;
+           3 /* length of the node number */;
 }
 
 static int drmParsePciDeviceInfo(const char *d_name,
diff --git a/xf86drmMode.c b/xf86drmMode.c
index 77100618..f7b59484 100644
--- a/xf86drmMode.c
+++ b/xf86drmMode.c
@@ -34,7 +34,7 @@
  */
 
 /*
- * TODO the types we are after are defined in diffrent headers on diffrent
+ * TODO the types we are after are defined in different headers on different
  * platforms find which headers to include to get uint32_t
  */