diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index 43cf15a2..f1a0b841 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -391,6 +391,7 @@ sna_output_backlight_init(xf86OutputPtr output)
 			}
 		}
 	}
+	closedir(dir);
 
 	sna_output->backlight_iface = NULL;