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-rw-r--r--nixpkgs/pkgs/build-support/setup-hooks/move-docs.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/build-support/setup-hooks/move-docs.sh b/nixpkgs/pkgs/build-support/setup-hooks/move-docs.sh
index ef31dcdce274..e4460f98816d 100644
--- a/nixpkgs/pkgs/build-support/setup-hooks/move-docs.sh
+++ b/nixpkgs/pkgs/build-support/setup-hooks/move-docs.sh
@@ -6,7 +6,7 @@ preFixupHooks+=(_moveToShare)
 
 _moveToShare() {
     forceShare=${forceShare:=man doc info}
-    if [ -z "$forceShare" -o -z "$out" ]; then return; fi
+    if [[ -z "$out" ]]; then return; fi
 
     for d in $forceShare; do
         if [ -d "$out/$d" ]; then