diff --git a/libfprint/drivers/elan.c b/libfprint/drivers/elan.c
index 9495a48..415aaef 100644
--- a/libfprint/drivers/elan.c
+++ b/libfprint/drivers/elan.c
@@ -321,6 +321,8 @@ elan_submit_image (FpImageDevice *dev)
   fpi_do_movement_estimation (&assembling_ctx, frames);
   img = fpi_assemble_frames (&assembling_ctx, frames);
 
+  g_slist_free_full (frames, g_free);
+
   fpi_image_device_image_captured (dev, img);
 }