diff --git a/package.json b/package.json
index 3c7d7cf6f..3eb77a9de 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "lint": "yarn flow",
     "start": "unset HOST && react-scripts start",
     "build": "unset HOST && export NODE_OPTIONS=--max-old-space-size=8192 && react-scripts build",
-    "postbuild": "node scripts/patchUrls.js",
+    "postbuild": "./scripts/old_space_size.sh && export NODE_OPTIONS=--max-old-space-size=8192 && node scripts/patchUrls.js",
     "ppostbuild": "react-snap",
     "test": "react-scripts test",
     "eject": "react-scripts eject"
diff --git a/scripts/old_space_size.sh b/scripts/old_space_size.sh
new file mode 100644
index 000000000..c5ef11b7d
--- /dev/null
+++ b/scripts/old_space_size.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+node -e 'console.log(`*** NODE HEAP LIMIT = ${require("v8").getHeapStatistics().heap_size_limit / (1024 * 1024)} Mb`)'