diff --git a/extra/libjpeg-turbo/build b/extra/libjpeg-turbo/build
index 9fabf405..cb77f394 100755
--- a/extra/libjpeg-turbo/build
+++ b/extra/libjpeg-turbo/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 patch -p1 < no-docs.patch
 
 cmake -B build \