diff --git a/sys/kaya/gstkayasrc.c b/sys/kaya/gstkayasrc.c
index 2f4c545..140f438 100644
--- a/sys/kaya/gstkayasrc.c
+++ b/sys/kaya/gstkayasrc.c
@@ -301,7 +301,7 @@ gst_kayasrc_get_exposure_time (GstKayaSrc * src)
 static void
 gst_kayasrc_set_exposure_time (GstKayaSrc * src)
 {
-  if (src->cam_handle != INVALID_CAMHANDLE) {
+  if (src->cam_handle != INVALID_CAMHANDLE && src->exposure_time > 0) {
     FGSTATUS ret = KYFG_SetCameraValueFloat (src->cam_handle, "ExposureTime",
         src->exposure_time);
     if (ret != FGSTATUS_OK) {