diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c0fdb17..2460b63 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,7 @@ jobs:
         build:
         - bun
         - clang
+        - crystal
         - deno
         - erlang
         - fortran
@@ -56,7 +57,10 @@ jobs:
         with:
           deno-version: "~1"
       - run: |
-          sudo apt install -y build-essential cargo clang curl erlang gfortran haskell-platform jq kotlin moreutils nodejs php rustc scala tar wget xz-utils
+          curl -sSL https://dist.crystal-lang.org/apt/setup.sh | sudo bash
+
+          sudo apt update
+          sudo apt install -y build-essential cargo clang crystal curl erlang gfortran haskell-platform jq kotlin moreutils nodejs php rustc scala tar wget xz-utils
           cargo install timers
           cargo install hyperfine
           cargo install ripgrep --features 'pcre2'
diff --git a/count.rb b/count.rb
index 882f469..11cd1da 100644
--- a/count.rb
+++ b/count.rb
@@ -3,4 +3,4 @@
   i += 1
 end
 
-print i
\ No newline at end of file
+puts i
\ No newline at end of file
diff --git a/justfile b/justfile
index 72e6e5d..0bbd8ff 100644
--- a/justfile
+++ b/justfile
@@ -104,3 +104,6 @@ build-php: (_check "php")
 build-erlang: (_check "erlc erl")
   erlc count.erl
   echo 'erl -noshell -s count start -s init stop' > CMD
+
+build-crystal: (_check "crystal")
+  echo 'crystal run ./count.rb' > CMD