diff --git a/src/data/config.rs b/src/data/config.rs
index 82d151f..ab6d21f 100644
--- a/src/data/config.rs
+++ b/src/data/config.rs
@@ -59,16 +59,27 @@ pub struct Config {
 static mut CONF: Option<Config> = None;
 
 impl Config {
-    fn yaml_u64(parsed: &Yaml, name: &str) -> u64 {
-        parsed[name].as_i64().expect(format!("{} is missing (int)", name).as_str()) as u64
+    fn yaml_str(parsed: &Yaml, name: &str) -> String {
+        match &parsed[name] {
+            Yaml::Real(r) | Yaml::String(r) => r.to_string(),
+            Yaml::Integer(i) => i.to_string(),
+            Yaml::Boolean(true) => "true".to_string(),
+            Yaml::Boolean(false) => "false".to_string(),
+            Yaml::Array(_) | Yaml::Hash(_) | Yaml::Alias(_) | Yaml::Null => {
+                panic!("{} can not be converted to string", name);
+            }
+            Yaml::BadValue => {
+                panic!("{} is missing", name);
+            }
+        }.to_string()
     }
 
-    fn yaml_str(parsed: &Yaml, name: &str) -> String {
-        parsed[name].as_str().expect(format!("{} is missing (str)", name).as_str()).to_string()
+    fn yaml_u64(parsed: &Yaml, name: &str) -> u64 {
+        Self::yaml_str(parsed, name).parse().unwrap()
     }
 
     fn yaml_bool(parsed: &Yaml, name: &str) -> bool {
-        parsed[name].as_bool().expect(format!("{} is missing (bool)", name).as_str())
+        Self::yaml_str(parsed, name).to_lowercase().eq("true")
     }
 
     /// Load the configuration from a given path