diff --git a/src/sdl2_mixer/flag.rs b/src/sdl2_mixer/flag.rs
deleted file mode 100644
index 4b573574..00000000
--- a/src/sdl2_mixer/flag.rs
+++ /dev/null
@@ -1,109 +0,0 @@
-// Loosely based on zlib-licensed code from RustAllegro
-//     https://github.com/SiegeLord/RustAllegro
-//
-// Implements efficient, type-safe flags with support for bitwise operators.
-//
-// Usage:
-//
-// flag_type!(FlagTypeName {
-//     FlagName1 = FlagValue1,
-//     FlagName2 = FlagValue2,
-//     ...
-//     FlagNameN = FlagValueN
-// })
-//
-// fn foo(flag: FlagTypeName) {
-//     let raw = (flag | FlagNameN).get();
-//     bar(raw);
-// }
-
-#![macro_escape]
-
-macro_rules! flag_type(
-    ($typename:ident : $supertype:ident { $($name:ident = $value:expr),* }) => {
-        pub struct $typename {
-            bits: $supertype
-        }
-
-        impl $typename {
-            #[inline]
-            pub fn new(bits: $supertype) -> $typename {
-                $typename { bits: bits }
-            }
-
-            #[inline]
-            pub fn get(self) -> $supertype {
-                self.bits
-            }
-        }
-
-        impl ::std::default::Default for $typename {
-            fn default() -> $typename {
-                $typename::new(0)
-            }
-        }
-
-        impl ::std::cmp::Eq for $typename {
-            fn eq(&self, other: &$typename) -> bool {
-                self.bits == other.bits
-            }
-        }
-
-        impl ::std::cmp::TotalEq for $typename {}
-
-        impl ::std::cmp::Ord for $typename {
-            fn lt(&self, other: &$typename) -> bool {
-                self.bits < other.bits
-            }
-        }
-
-        impl ::std::cmp::TotalOrd for $typename {
-            fn cmp(&self, other: &$typename) -> Ordering {
-                self.bits.cmp(&other.bits)
-            }
-        }
-
-        impl ::std::ops::Not<$typename> for $typename {
-            fn not(&self) -> $typename {
-                $typename { bits: !self.bits }
-            }
-        }
-
-        impl ::std::ops::BitAnd<$typename, $typename> for $typename {
-            fn bitand(&self, rhs: &$typename) -> $typename {
-                $typename { bits: self.bits & rhs.bits }
-            }
-        }
-
-        impl ::std::ops::BitOr<$typename, $typename> for $typename {
-            fn bitor(&self, rhs: &$typename) -> $typename {
-                $typename { bits: self.bits | rhs.bits }
-            }
-        }
-
-        impl ::std::ops::BitXor<$typename, $typename> for $typename {
-            fn bitxor(&self, rhs: &$typename) -> $typename {
-                $typename { bits: self.bits ^ rhs.bits }
-            }
-        }
-
-        impl ::std::ops::Shl<$supertype, $typename> for $typename {
-            fn shl(&self, rhs: &$supertype) -> $typename {
-                $typename { bits: self.bits << *rhs }
-            }
-        }
-
-        impl ::std::ops::Shr<$supertype, $typename> for $typename {
-            fn shr(&self, rhs: &$supertype) -> $typename {
-                $typename { bits: self.bits >> *rhs }
-            }
-        }
-
-        $(
-            pub static $name: $typename = $typename { bits: $value as $supertype };
-        )+
-    };
-    ($typename:ident { $($name:ident = $value:expr),* }) => {
-        flag_type!($typename : u32 { $($name = $value),* })
-    }
-)
diff --git a/src/sdl2_mixer/lib.rs b/src/sdl2_mixer/lib.rs
index 501626ef..9e173048 100644
--- a/src/sdl2_mixer/lib.rs
+++ b/src/sdl2_mixer/lib.rs
@@ -45,7 +45,6 @@ mod others {
 
 #[allow(non_camel_case_types, dead_code)]
 mod ffi;
-mod flag;
 
 // This comes from SDL_audio.h
 #[allow(non_camel_case_types)]
@@ -110,20 +109,22 @@ pub fn get_linked_version() -> Version {
     }
 }
 
-flag_type!(InitFlag : c_int {
-    InitFlac       = ffi::MIX_INIT_FLAC,
-    InitMod        = ffi::MIX_INIT_MOD,
-    InitModPlug    = ffi::MIX_INIT_MODPLUG,
-    InitMp3        = ffi::MIX_INIT_MP3,
-    InitOgg        = ffi::MIX_INIT_OGG,
-    InitFluidSynth = ffi::MIX_INIT_FLUIDSYNTH
+bitflags!(flags InitFlag : u32 {
+    static InitFlac       = ffi::MIX_INIT_FLAC as u32,
+    static InitMod        = ffi::MIX_INIT_MOD as u32,
+    static InitModPlug    = ffi::MIX_INIT_MODPLUG as u32,
+    static InitMp3        = ffi::MIX_INIT_MP3 as u32,
+    static InitOgg        = ffi::MIX_INIT_OGG as u32,
+    static InitFluidSynth = ffi::MIX_INIT_FLUIDSYNTH as u32
 })
 
 /// Loads dynamic libraries and prepares them for use.  Flags should be
 /// one or more flags from InitFlag.
 pub fn init(flags: InitFlag) -> InitFlag {
-    let ret = unsafe { ffi::Mix_Init(flags.get()) };
-    InitFlag::new(ret)
+    unsafe {
+        let ret = ffi::Mix_Init(flags.bits() as c_int);
+        InitFlag::from_bits(ret as u32)
+    }
 }
 
 /// Cleans up all dynamically loaded library handles, freeing memory.