diff --git a/acmed/src/acmed.rs b/acmed/src/acmed.rs
index 0ed45a6..6709dcf 100644
--- a/acmed/src/acmed.rs
+++ b/acmed/src/acmed.rs
@@ -138,8 +138,8 @@ impl HookData {
             .spawn()?;
         if hook.stdin.is_some() {
             let data_in = reg.render_template(&hook.stdin.to_owned().unwrap(), &self)?;
-            let stdin = cmd.stdin.as_mut().unwrap();
-            stdin.write_all(data_in.as_bytes()).unwrap();
+            let stdin = cmd.stdin.as_mut().ok_or("stdin not found")?;
+            stdin.write_all(data_in.as_bytes())?;
         }
         Ok(())
     }
diff --git a/acmed/src/errors.rs b/acmed/src/errors.rs
index 30042a8..1aa679e 100644
--- a/acmed/src/errors.rs
+++ b/acmed/src/errors.rs
@@ -24,6 +24,12 @@ impl From<std::io::Error> for Error {
     }
 }
 
+impl From<&str> for Error {
+    fn from(error: &str) -> Self {
+        Error::new(error)
+    }
+}
+
 impl From<toml::de::Error> for Error {
     fn from(error: toml::de::Error) -> Self {
         Error::new(&format!("IO error: {}", error))