diff --git a/audio/decoders/adpcm.cpp b/audio/decoders/adpcm.cpp
index f069ee3417d..61b0abaaca0 100644
--- a/audio/decoders/adpcm.cpp
+++ b/audio/decoders/adpcm.cpp
@@ -433,7 +433,7 @@ int16 Ima_ADPCMStream::decodeIMA(byte code, int channel) {
 	return samp;
 }
 
-RewindableAudioStream *makeADPCMStream(Common::SeekableReadStream *stream, DisposeAfterUse::Flag disposeAfterUse, uint32 size, typesADPCM type, int rate, int channels, uint32 blockAlign) {
+RewindableAudioStream *makeADPCMStream(Common::SeekableReadStream *stream, DisposeAfterUse::Flag disposeAfterUse, uint32 size, ADPCMType type, int rate, int channels, uint32 blockAlign) {
 	// If size is 0, report the entire size of the stream
 	if (!size)
 		size = stream->size();
diff --git a/audio/decoders/adpcm.h b/audio/decoders/adpcm.h
index 288026203b4..d3c46574bff 100644
--- a/audio/decoders/adpcm.h
+++ b/audio/decoders/adpcm.h
@@ -51,7 +51,7 @@ class RewindableAudioStream;
 // http://wiki.multimedia.cx/index.php?title=Category:ADPCM_Audio_Codecs
 // Usually, if the audio stream we're trying to play has the FourCC header
 // string intact, it's easy to discern which encoding is used
-enum typesADPCM {
+enum ADPCMType {
 	kADPCMOki,                 // Dialogic/Oki ADPCM (aka VOX)
 	kADPCMMSIma,               // Microsoft IMA ADPCM
 	kADPCMMS,                  // Microsoft ADPCM
@@ -76,7 +76,7 @@ enum typesADPCM {
 RewindableAudioStream *makeADPCMStream(
     Common::SeekableReadStream *stream,
     DisposeAfterUse::Flag disposeAfterUse,
-    uint32 size, typesADPCM type,
+    uint32 size, ADPCMType type,
     int rate,
     int channels,
     uint32 blockAlign = 0);