diff --git a/generate/templates/templates/binding.gyp b/generate/templates/templates/binding.gyp
index 70e516d13..3d2d80a0d 100644
--- a/generate/templates/templates/binding.gyp
+++ b/generate/templates/templates/binding.gyp
@@ -1,7 +1,7 @@
 {
   "variables": {
     "is_electron%": "<!(node ./utils/isBuildingForElectron.js <(node_root_dir))",
-    "is_IBMi%": "<!(node ./utils/isBuildingForIBMi.js)"
+    "is_IBMi%": "<!(node -p \"os.platform() == 'aix' && os.type() == 'OS400' ? 1 : 0\")"
   },
 
   "targets": [
diff --git a/utils/isBuildingForIBMi.js b/utils/isBuildingForIBMi.js
deleted file mode 100644
index 4cc01f06e..000000000
--- a/utils/isBuildingForIBMi.js
+++ /dev/null
@@ -1,4 +0,0 @@
-const os = require("os");
-const isIBMi = (os.platform() == "aix" && os.type() == "OS400");
-
-process.stdout.write(isIBMi ? "1" : "0");
diff --git a/vendor/libgit2.gyp b/vendor/libgit2.gyp
index ea06fcfa4..c6e72268b 100644
--- a/vendor/libgit2.gyp
+++ b/vendor/libgit2.gyp
@@ -9,7 +9,7 @@
     "gcc_version%": 0,
     "is_electron%": "<!(node ../utils/isBuildingForElectron.js <(node_root_dir))",
     "is_clang%": 0,
-    "is_IBMi%": "<!(node ../utils/isBuildingForIBMi.js)"
+    "is_IBMi%": "<!(node -p \"os.platform() == 'aix' && os.type() == 'OS400' ? 1 : 0\")"
   },
   "targets": [
     {