diff --git a/Source/OpenTK/Audio/OpenAL/Alc/Alc.cs b/Source/OpenTK/Audio/OpenAL/Alc/Alc.cs
index d7033c3b..a772450c 100644
--- a/Source/OpenTK/Audio/OpenAL/Alc/Alc.cs
+++ b/Source/OpenTK/Audio/OpenAL/Alc/Alc.cs
@@ -311,6 +311,16 @@ namespace OpenTK.Audio
         /// <returns>Returns the capture device pointer, or NULL on failure.</returns>
         [CLSCompliant(false), DllImport(Alc.Lib, EntryPoint = "alcCaptureOpenDevice", ExactSpelling = true, CallingConvention = Alc.Style, CharSet = CharSet.Ansi), SuppressUnmanagedCodeSecurity()]
         public static extern IntPtr CaptureOpenDevice(string devicename, uint frequency, ALFormat format, int buffersize);
+
+        /// <summary>This function opens a capture device by name. </summary>
+        /// <param name="devicename">a pointer to a device name string.</param>
+        /// <param name="frequency">the frequency that the buffer should be captured at.</param>
+        /// <param name="format">the requested capture buffer format.</param>
+        /// <param name="buffersize">the size of the capture buffer in samples, not bytes.</param>
+        /// <returns>Returns the capture device pointer, or NULL on failure.</returns>
+        [DllImport(Alc.Lib, EntryPoint = "alcCaptureOpenDevice", ExactSpelling = true, CallingConvention = Alc.Style, CharSet = CharSet.Ansi), SuppressUnmanagedCodeSecurity()]
+        public static extern IntPtr CaptureOpenDevice(string devicename, int frequency, ALFormat format, int buffersize);
+
         // ALC_API ALCdevice*      ALC_APIENTRY alcCaptureOpenDevice( const ALCchar *devicename, ALCuint frequency, ALCenum format, ALCsizei buffersize );
 
         /// <summary>This function closes the specified capture device.</summary>