diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 931d31a..58c6683 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -63,6 +63,17 @@ jobs:
           cargo run
         working-directory: ./example_shadow_hook
 
+      # example_wasm check
+      - name: Setup wasm-pack
+        uses: jetli/wasm-pack-action@v0.4.0
+        with:
+          version: latest
+        run: |
+          cargo b
+          wasm-pack build --target bundler 
+          wasm-pack build --target web
+        working-directory: ./example_wasm
+
       # build on nightly
       - uses: actions-rs/toolchain@v1
         with:
diff --git a/Cargo.toml b/Cargo.toml
index a9807d5..229c421 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,6 @@ license = "MIT AND Apache-2.0"
 exclude = ["shadow-rs.png", "build_module.png"]
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
-
 [package.metadata.docs.rs]
 all-features = true
 
@@ -40,4 +39,4 @@ default = ["git2", "tzdb"]
 regex = "1.7.0"
 
 [workspace]
-members = ["example_shadow", "example_shadow_hook"]
+members = ["example_shadow", "example_shadow_hook", "example_wasm"]
diff --git a/example_wasm/Cargo.toml b/example_wasm/Cargo.toml
new file mode 100644
index 0000000..e434dbc
--- /dev/null
+++ b/example_wasm/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "example_wasm"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+
+[dependencies]
+shadow-rs = { path = "../", default-features = false, features = ["tzdb"] }
\ No newline at end of file
diff --git a/example_wasm/src/lib.rs b/example_wasm/src/lib.rs
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/example_wasm/src/lib.rs
@@ -0,0 +1 @@
+
diff --git a/src/git.rs b/src/git.rs
index b89c2cb..a024c30 100644
--- a/src/git.rs
+++ b/src/git.rs
@@ -1,8 +1,6 @@
 use crate::build::{ConstType, ConstVal, ShadowConst};
 use crate::ci::CiType;
-use crate::date_time::DateTime;
 use crate::err::*;
-use crate::Format;
 use std::collections::BTreeMap;
 use std::io::{BufReader, Read};
 use std::path::Path;
@@ -135,10 +133,13 @@ impl Git {
         Ok(())
     }
 
+    #[allow(unused_variables)]
     fn init_git2(&mut self, path: &Path) -> SdResult<()> {
         #[cfg(feature = "git2")]
         {
+            use crate::date_time::DateTime;
             use crate::git::git2_mod::git_repo;
+            use crate::Format;
 
             let repo = git_repo(path).map_err(ShadowError::new)?;
             let reference = repo.head().map_err(ShadowError::new)?;