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-rw-r--r--pkgs/development/compilers/openjdk/darwin/8.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/compilers/openjdk/darwin/8.nix b/pkgs/development/compilers/openjdk/darwin/8.nix
index d2fef9bb481..bc7a33932b2 100644
--- a/pkgs/development/compilers/openjdk/darwin/8.nix
+++ b/pkgs/development/compilers/openjdk/darwin/8.nix
@@ -44,7 +44,7 @@ let
 
       # Set JAVA_HOME automatically.
       cat <<EOF >> $out/nix-support/setup-hook
-      if [ -z "\$JAVA_HOME" ]; then export JAVA_HOME=$out; fi
+      if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
       EOF
     '';