diff --git a/pkgs/reverse-engineering/ghidra/build-extension.nix b/pkgs/reverse-engineering/ghidra/build-extension.nix
index a677879..7a96610 100644
--- a/pkgs/reverse-engineering/ghidra/build-extension.nix
+++ b/pkgs/reverse-engineering/ghidra/build-extension.nix
@@ -49,7 +49,7 @@ let
         __darwinAllowLocalNetworking = true;
 
         gradleBuildTask = args.gradleBuildTask or "buildExtension";
-        gradleFlags = args.gradleFlags or [ ] ++ [ "-PGHIDRA_INSTALL_DIR=${ghidra}/lib/ghidra" ];
+        gradleFlags = args.gradleFlags or [ ] ++ [ "-PGHIDRA_INSTALL_DIR=${ghidra.lib}/lib/ghidra" ];
 
         installPhase =
           args.installPhase or ''
@@ -82,7 +82,7 @@ let
           cp -r . $GHIDRA_HOME/ghidra_scripts
 
           touch $GHIDRA_HOME/Module.manifest
-          cat <<'EOF' > extension.properties
+          cat <<'EOF' > $GHIDRA_HOME/extension.properties
           name=${pname}
           description=${meta.description or ""}
           author=