diff --git a/TOOLS/vf_dlopen/ildetect.sh b/TOOLS/vf_dlopen/ildetect.sh
index c12fde4f6f..cc37ca90a9 100755
--- a/TOOLS/vf_dlopen/ildetect.sh
+++ b/TOOLS/vf_dlopen/ildetect.sh
@@ -11,7 +11,6 @@ esac
 
 : ${MPV:=mpv}
 : ${ILDETECT_MPV:=$MPV}
-: ${ILDETECT_MPV:=$MPV}
 : ${ILDETECT_MPVFLAGS:=--start=35% --length=35}
 : ${ILDETECT_DRY_RUN:=}
 : ${ILDETECT_QUIET:=}