diff --git a/hardware/radioshack-dmm/Makefile.am b/hardware/radioshack-dmm/Makefile.am
index 99091aa1..cbccb88b 100644
--- a/hardware/radioshack-dmm/Makefile.am
+++ b/hardware/radioshack-dmm/Makefile.am
@@ -25,8 +25,8 @@ noinst_LTLIBRARIES = libsigrokhwradioshackdmm.la
 
 libsigrokhwradioshackdmm_la_SOURCES = \
 	api.c \
-	radioshack.c \
-	radioshack-dmm.h
+	protocol.c \
+	protocol.h
 
 libsigrokhwradioshackdmm_la_CFLAGS = \
 	-I$(top_srcdir)
diff --git a/hardware/radioshack-dmm/api.c b/hardware/radioshack-dmm/api.c
index a920d3a9..7a6f0339 100644
--- a/hardware/radioshack-dmm/api.c
+++ b/hardware/radioshack-dmm/api.c
@@ -26,7 +26,7 @@
 #include <errno.h>
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
-#include "radioshack-dmm.h"
+#include "protocol.h"
 
 static const int hwopts[] = {
 	SR_HWOPT_CONN,
diff --git a/hardware/radioshack-dmm/radioshack.c b/hardware/radioshack-dmm/protocol.c
similarity index 99%
rename from hardware/radioshack-dmm/radioshack.c
rename to hardware/radioshack-dmm/protocol.c
index cb77339c..96342cec 100644
--- a/hardware/radioshack-dmm/radioshack.c
+++ b/hardware/radioshack-dmm/protocol.c
@@ -25,7 +25,7 @@
 #include <glib.h>
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
-#include "radioshack-dmm.h"
+#include "protocol.h"
 
 /* Byte 1 of the packet, and the modes it represents */
 #define IND1_HZ		0x80
diff --git a/hardware/radioshack-dmm/radioshack-dmm.h b/hardware/radioshack-dmm/protocol.h
similarity index 94%
rename from hardware/radioshack-dmm/radioshack-dmm.h
rename to hardware/radioshack-dmm/protocol.h
index 5d13e7f8..833cc458 100644
--- a/hardware/radioshack-dmm/radioshack-dmm.h
+++ b/hardware/radioshack-dmm/protocol.h
@@ -18,8 +18,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef LIBSIGROK_HARDWARE_RADIOSHACK_DMM_RADIOSHACK_DMM_H
-#define LIBSIGROK_HARDWARE_RADIOSHACK_DMM_RADIOSHACK_DMM_H
+#ifndef LIBSIGROK_HARDWARE_RADIOSHACK_DMM_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_RADIOSHACK_DMM_PROTOCOL_H
 
 /* Message logging helpers with driver-specific prefix string. */
 #define DRIVER_LOG_DOMAIN "radioshack-dmm: "