diff --git a/src/util/dictionary.rs b/src/util/dictionary.rs
index 69ef36c..33c9e6b 100644
--- a/src/util/dictionary.rs
+++ b/src/util/dictionary.rs
@@ -6,21 +6,22 @@ use ffi::*;
 pub struct Dictionary<'a> {
 	pub ptr: *mut AVDictionary,
 
-	own:     bool,
-	_marker: PhantomData<&'a i32>,
+	_own:    bool,
+	_marker: PhantomData<&'a ()>,
 }
 
 impl<'a> Dictionary<'a> {
 	pub fn new() -> Self {
-		Dictionary { ptr: ptr::null_mut(), own: true, _marker: PhantomData }
+		Dictionary { ptr: ptr::null_mut(), _own: true, _marker: PhantomData }
 	}
 
 	pub fn wrap(ptr: *mut AVDictionary) -> Self {
-		Dictionary { ptr: ptr, own: false, _marker: PhantomData }
+		Dictionary { ptr: ptr, _own: false, _marker: PhantomData }
 	}
 
 	pub fn take(&mut self) -> *mut AVDictionary {
-		self.own = false;
+		self._own = false;
+
 		self.ptr
 	}
 }
@@ -28,7 +29,7 @@ impl<'a> Dictionary<'a> {
 impl<'a> Drop for Dictionary<'a> {
 	fn drop(&mut self) {
 		unsafe {
-			if self.own && self.ptr != ptr::null_mut() {
+			if self._own && self.ptr != ptr::null_mut() {
 				av_dict_free(&mut self.ptr);
 			}
 		}