diff --git a/src/steps/zsh.rs b/src/steps/zsh.rs
index ce3d83ea..85cc3c52 100644
--- a/src/steps/zsh.rs
+++ b/src/steps/zsh.rs
@@ -139,7 +139,7 @@ pub fn run_oh_my_zsh(ctx: &ExecutionContext) -> Result<()> {
     }
 
     ctx.run_type()
-        .execute("sh")
+        .execute("zsh")
         .env("ZSH", &oh_my_zsh)
         .arg(&oh_my_zsh.join("tools/upgrade.sh"))
         .check_run()