diff --git a/cli/build.rs b/cli/build.rs
index 87092c40..117b1f6d 100644
--- a/cli/build.rs
+++ b/cli/build.rs
@@ -67,7 +67,7 @@ fn read_git_sha() -> Option<String> {
 
     if !crate_path
         .parent()
-        .map_or(false, |p| p.join(".git").is_dir())
+        .map_or(false, |p| p.join(".git").exists())
     {
         return None;
     }
diff --git a/cli/generate/build.rs b/cli/generate/build.rs
index dcfd67b4..b423258c 100644
--- a/cli/generate/build.rs
+++ b/cli/generate/build.rs
@@ -14,7 +14,7 @@ fn read_git_sha() -> Option<String> {
     if !crate_path
         .parent()?
         .parent()
-        .map_or(false, |p| p.join(".git").is_dir())
+        .map_or(false, |p| p.join(".git").exists())
     {
         return None;
     }