diff --git a/libfprint/drivers/elan.c b/libfprint/drivers/elan.c
index b417a41..6e9107e 100644
--- a/libfprint/drivers/elan.c
+++ b/libfprint/drivers/elan.c
@@ -223,6 +223,7 @@ elan_save_img_frame (FpiDeviceElan *elandev)
     {
       fp_dbg
         ("frame darker than background; finger present during calibration?");
+      g_free (frame);
       return -1;
     }