diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d90664f..8966397 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,6 +26,8 @@ jobs:
           components: rustfmt
       - name: Cache
         uses: Swatinem/rust-cache@v2
+      - name: Check function count badge
+        run: python3 docs/generate_count_badge.py --check
       - name: Check formatting
         run: cargo fmt --check
 #      - name: Check if the README is up to date.
diff --git a/README.md b/README.md
index ebf43ea..4d20418 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@
 <p align="center">
     <a href="https://crates.io/crates/leptos-use"><img src="https://img.shields.io/crates/v/leptos-use.svg?label=&color=%232C1275" alt="Crates.io"/></a>
     <a href="https://leptos-use.rs"><img src="https://img.shields.io/badge/-docs%20%26%20demos-%239A233F" alt="Docs & Demos"></a> 
-    <a href="https://leptos-use.rs"><img src="https://img.shields.io/badge/-23%20functions-%23EF3939" alt="23 Functions" /></a>
+    <a href="https://leptos-use.rs"><img src="https://img.shields.io/badge/-22%20functions-%23EF3939" alt="23 Functions" /></a>
 </p>
 
 <br/>
diff --git a/docs/generate_count_badge.py b/docs/generate_count_badge.py
index cf69e47..bbe1e25 100644
--- a/docs/generate_count_badge.py
+++ b/docs/generate_count_badge.py
@@ -1,5 +1,6 @@
 import os
 import re
+import sys
 
 def main():
     count = 0
@@ -13,12 +14,22 @@ def main():
     print(f"Found {count} functions")
 
     with open("README.md", "r") as f:
+        original_text = f.read()
         text = re.sub(
             r'<img src="https://img.shields.io/badge/-\d+%20functions-%23EF3939" alt="\d+ Functions"',
             f'<img src="https://img.shields.io/badge/-{count}%20functions-%23EF3939" alt="{count} Functions"',
-            f.read()
+            original_text
         )
 
+        if sys.argv[1] == "--check":
+            if original_text != text:
+                print("[Failed] README.md doesn't have the correct function count badge", file=sys.stderr)
+                print("  * Run `python3 docs/generate_count_badge.py` to fix", file=sys.stderr)
+                quit(1)
+            else:
+                print("[OK] README.md has the correct function count badge")
+                quit(0)
+
     with open("README.md", "w") as f:
         f.write(text)