diff --git a/app/src/device_msg.c b/app/src/device_msg.c
index f9f22a85..0cadc49c 100644
--- a/app/src/device_msg.c
+++ b/app/src/device_msg.c
@@ -8,7 +8,8 @@
 #include "util/log.h"
 
 ssize_t
-device_msg_deserialize(const uint8_t *buf, size_t len, struct device_msg *msg) {
+sc_device_msg_deserialize(const uint8_t *buf, size_t len,
+                          struct sc_device_msg *msg) {
     if (!len) {
         return 0; // no message
     }
@@ -52,7 +53,7 @@ device_msg_deserialize(const uint8_t *buf, size_t len, struct device_msg *msg) {
 }
 
 void
-device_msg_destroy(struct device_msg *msg) {
+sc_device_msg_destroy(struct sc_device_msg *msg) {
     if (msg->type == DEVICE_MSG_TYPE_CLIPBOARD) {
         free(msg->clipboard.text);
     }
diff --git a/app/src/device_msg.h b/app/src/device_msg.h
index 3b68a61a..3f541cf5 100644
--- a/app/src/device_msg.h
+++ b/app/src/device_msg.h
@@ -11,13 +11,13 @@
 // type: 1 byte; length: 4 bytes
 #define DEVICE_MSG_TEXT_MAX_LENGTH (DEVICE_MSG_MAX_SIZE - 5)
 
-enum device_msg_type {
+enum sc_device_msg_type {
     DEVICE_MSG_TYPE_CLIPBOARD,
     DEVICE_MSG_TYPE_ACK_CLIPBOARD,
 };
 
-struct device_msg {
-    enum device_msg_type type;
+struct sc_device_msg {
+    enum sc_device_msg_type type;
     union {
         struct {
             char *text; // owned, to be freed by free()
@@ -30,9 +30,10 @@ struct device_msg {
 
 // return the number of bytes consumed (0 for no msg available, -1 on error)
 ssize_t
-device_msg_deserialize(const uint8_t *buf, size_t len, struct device_msg *msg);
+sc_device_msg_deserialize(const uint8_t *buf, size_t len,
+                          struct sc_device_msg *msg);
 
 void
-device_msg_destroy(struct device_msg *msg);
+sc_device_msg_destroy(struct sc_device_msg *msg);
 
 #endif
diff --git a/app/src/receiver.c b/app/src/receiver.c
index c08cd6cf..408e1db7 100644
--- a/app/src/receiver.c
+++ b/app/src/receiver.c
@@ -27,7 +27,7 @@ sc_receiver_destroy(struct sc_receiver *receiver) {
 }
 
 static void
-process_msg(struct sc_receiver *receiver, struct device_msg *msg) {
+process_msg(struct sc_receiver *receiver, struct sc_device_msg *msg) {
     switch (msg->type) {
         case DEVICE_MSG_TYPE_CLIPBOARD: {
             char *current = SDL_GetClipboardText();
@@ -55,8 +55,8 @@ static ssize_t
 process_msgs(struct sc_receiver *receiver, const uint8_t *buf, size_t len) {
     size_t head = 0;
     for (;;) {
-        struct device_msg msg;
-        ssize_t r = device_msg_deserialize(&buf[head], len - head, &msg);
+        struct sc_device_msg msg;
+        ssize_t r = sc_device_msg_deserialize(&buf[head], len - head, &msg);
         if (r == -1) {
             return -1;
         }
@@ -65,7 +65,7 @@ process_msgs(struct sc_receiver *receiver, const uint8_t *buf, size_t len) {
         }
 
         process_msg(receiver, &msg);
-        device_msg_destroy(&msg);
+        sc_device_msg_destroy(&msg);
 
         head += r;
         assert(head <= len);
diff --git a/app/tests/test_device_msg_deserialize.c b/app/tests/test_device_msg_deserialize.c
index a1a3f695..bfbcefd6 100644
--- a/app/tests/test_device_msg_deserialize.c
+++ b/app/tests/test_device_msg_deserialize.c
@@ -14,15 +14,15 @@ static void test_deserialize_clipboard(void) {
         0x41, 0x42, 0x43, // "ABC"
     };
 
-    struct device_msg msg;
-    ssize_t r = device_msg_deserialize(input, sizeof(input), &msg);
+    struct sc_device_msg msg;
+    ssize_t r = sc_device_msg_deserialize(input, sizeof(input), &msg);
     assert(r == 8);
 
     assert(msg.type == DEVICE_MSG_TYPE_CLIPBOARD);
     assert(msg.clipboard.text);
     assert(!strcmp("ABC", msg.clipboard.text));
 
-    device_msg_destroy(&msg);
+    sc_device_msg_destroy(&msg);
 }
 
 static void test_deserialize_clipboard_big(void) {
@@ -35,8 +35,8 @@ static void test_deserialize_clipboard_big(void) {
 
     memset(input + 5, 'a', DEVICE_MSG_TEXT_MAX_LENGTH);
 
-    struct device_msg msg;
-    ssize_t r = device_msg_deserialize(input, sizeof(input), &msg);
+    struct sc_device_msg msg;
+    ssize_t r = sc_device_msg_deserialize(input, sizeof(input), &msg);
     assert(r == DEVICE_MSG_MAX_SIZE);
 
     assert(msg.type == DEVICE_MSG_TYPE_CLIPBOARD);
@@ -44,7 +44,7 @@ static void test_deserialize_clipboard_big(void) {
     assert(strlen(msg.clipboard.text) == DEVICE_MSG_TEXT_MAX_LENGTH);
     assert(msg.clipboard.text[0] == 'a');
 
-    device_msg_destroy(&msg);
+    sc_device_msg_destroy(&msg);
 }
 
 static void test_deserialize_ack_set_clipboard(void) {
@@ -53,8 +53,8 @@ static void test_deserialize_ack_set_clipboard(void) {
         0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, // sequence
     };
 
-    struct device_msg msg;
-    ssize_t r = device_msg_deserialize(input, sizeof(input), &msg);
+    struct sc_device_msg msg;
+    ssize_t r = sc_device_msg_deserialize(input, sizeof(input), &msg);
     assert(r == 9);
 
     assert(msg.type == DEVICE_MSG_TYPE_ACK_CLIPBOARD);