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-rw-r--r--pkgs/applications/science/logic/hol_light/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/applications/science/logic/hol_light/default.nix b/pkgs/applications/science/logic/hol_light/default.nix
index 06d349ad3c8b9..88f3f788376c0 100644
--- a/pkgs/applications/science/logic/hol_light/default.nix
+++ b/pkgs/applications/science/logic/hol_light/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation {
   '';
 
   installPhase = ''
-    ensureDir "$out/lib/hol_light" "$out/bin"
+    mkdir -p "$out/lib/hol_light" "$out/bin"
     cp -a  . $out/lib/hol_light
     echo "${start_script}" > "$out/bin/hol_light"
     chmod a+x "$out/bin/hol_light"