diff --git a/arch/mx/mx.h b/arch/mx/mx.h
index 6b7a615f..9347eaee 100644
--- a/arch/mx/mx.h
+++ b/arch/mx/mx.h
@@ -3,9 +3,12 @@
 
 #include "decoders/decoders.h"
 
+class MxInputProto;
+
 class MxDecoder : public AbstractDecoder
 {
 public:
+	MxDecoder(const MxInputProto&) {}
     virtual ~MxDecoder() {}
 
     void beginTrack();
diff --git a/arch/mx/mx.proto b/arch/mx/mx.proto
new file mode 100644
index 00000000..02a6187a
--- /dev/null
+++ b/arch/mx/mx.proto
@@ -0,0 +1,4 @@
+syntax = "proto2";
+
+message MxInputProto {}
+
diff --git a/lib/decoders/decoders.cc b/lib/decoders/decoders.cc
index 522f2cc0..f4ad9abe 100644
--- a/lib/decoders/decoders.cc
+++ b/lib/decoders/decoders.cc
@@ -12,6 +12,7 @@
 #include "arch/ibm/ibm.h"
 #include "arch/macintosh/macintosh.h"
 #include "arch/micropolis/micropolis.h"
+#include "arch/mx/mx.h"
 #include "decoders/fluxmapreader.h"
 #include "record.h"
 #include "protocol.h"
@@ -53,6 +54,9 @@ std::unique_ptr<AbstractDecoder> AbstractDecoder::create(const DecoderProto& con
 		case DecoderProto::kMicropolis:
 			return std::unique_ptr<AbstractDecoder>(new MicropolisDecoder(config.micropolis()));
 
+		case DecoderProto::kMx:
+			return std::unique_ptr<AbstractDecoder>(new MxDecoder(config.mx()));
+
 		default:
 			Error() << "no input disk format specified";
 	}
diff --git a/lib/decoders/decoders.proto b/lib/decoders/decoders.proto
index 1b5b9078..f1f30ef6 100644
--- a/lib/decoders/decoders.proto
+++ b/lib/decoders/decoders.proto
@@ -10,6 +10,7 @@ import "arch/fb100/fb100.proto";
 import "arch/ibm/ibm.proto";
 import "arch/macintosh/macintosh.proto";
 import "arch/micropolis/micropolis.proto";
+import "arch/mx/mx.proto";
 import "lib/common.proto";
 
 message DecoderProto {
@@ -33,6 +34,7 @@ message DecoderProto {
 		MacintoshInputProto macintosh = 12;
 		Apple2InputProto apple2 = 13;
 		MicropolisInputProto micropolis = 14;
+		MxInputProto mx = 15;
 	}
 }
 
diff --git a/mkninja.sh b/mkninja.sh
index e11cba83..5fa9ffd5 100644
--- a/mkninja.sh
+++ b/mkninja.sh
@@ -267,6 +267,7 @@ buildproto libproto.a \
     arch/ibm/ibm.proto \
     arch/macintosh/macintosh.proto \
     arch/micropolis/micropolis.proto \
+    arch/mx/mx.proto \
     lib/common.proto \
     lib/config.proto \
     lib/decoders/decoders.proto \
@@ -359,6 +360,7 @@ READABLES="\
     ibm \
     macintosh \
     micropolis \
+    mx \
     "
 
 WRITABLES="\
@@ -420,7 +422,6 @@ buildlibrary libfrontend.a \
     src/fe-writeflux.cc \
     src/fluxengine.cc \
 
-#    src/fe-readmx.cc \
 #    src/fe-readtids990.cc \
 #    src/fe-readvictor9k.cc \
 #    src/fe-readzilogmcz.cc \
diff --git a/src/fe-readmx.cc b/src/fe-readmx.cc
deleted file mode 100644
index 4abd3b3b..00000000
--- a/src/fe-readmx.cc
+++ /dev/null
@@ -1,23 +0,0 @@
-#include "globals.h"
-#include "flags.h"
-#include "reader.h"
-#include "fluxmap.h"
-#include "decoders/decoders.h"
-#include "mx/mx.h"
-#include "sector.h"
-#include "sectorset.h"
-#include "record.h"
-
-static FlagGroup flags { &readerFlags };
-
-int mainReadMx(int argc, const char* argv[])
-{
-	setReaderDefaultSource(":t=0-79:s=0-1");
-	setReaderDefaultOutput("mx.img");
-    flags.parseFlags(argc, argv);
-
-	MxDecoder decoder;
-	readDiskCommand(decoder);
-    return 0;
-}
-
diff --git a/src/readables/mx.textpb b/src/readables/mx.textpb
new file mode 100644
index 00000000..9acab295
--- /dev/null
+++ b/src/readables/mx.textpb
@@ -0,0 +1,27 @@
+input {
+	disk {
+		drive {}
+	}
+}
+
+output {
+	file {
+		filename: "mx.img"
+		img {}
+	}
+}
+
+decoder {
+	mx {}
+}
+
+cylinders {
+	start: 0
+	end: 79
+}
+
+heads {
+	start: 0
+	end: 1
+}
+