diff --git a/pkgs/build-support/setup-hooks/make-symlinks-relative.sh b/pkgs/build-support/setup-hooks/make-symlinks-relative.sh
index 0608d3ca81c..cd9c2eaa2d8 100644
--- a/pkgs/build-support/setup-hooks/make-symlinks-relative.sh
+++ b/pkgs/build-support/setup-hooks/make-symlinks-relative.sh
@@ -1,4 +1,4 @@
-fixupOutputHooks+=(_makeSymlinksRelative)
+postFixupHooks+=(_makeSymlinksRelative)
 
 # For every symlink in $output that refers to another file in $output
 # ensure that the symlink is relative. This removes references to the output