diff --git a/src/hidpp10.c b/src/hidpp10.c
index 2ccf244c..574c497f 100644
--- a/src/hidpp10.c
+++ b/src/hidpp10.c
@@ -43,6 +43,22 @@
 #include "libratbag-util.h"
 #include "libratbag-hidraw.h"
 
+struct _hidpp10_message {
+	uint8_t report_id;
+	uint8_t device_idx;
+	uint8_t sub_id;
+	uint8_t address;
+	union {
+		uint8_t parameters[3];
+		uint8_t string[16];
+	};
+} __attribute__((packed));
+
+union hidpp10_message {
+	struct _hidpp10_message msg;
+	uint8_t data[LONG_MESSAGE_LENGTH];
+};
+
 #define ERROR_MSG(__hidpp_msg, idx)	{ \
 	.msg = { \
 		.report_id = REPORT_ID_SHORT, \
@@ -86,7 +102,7 @@ const char *device_types[0xFF] = {
 	[0x0A ... 0xFE] = NULL,
 };
 
-int
+static int
 hidpp10_request_command(struct hidpp10_device *dev, union hidpp10_message *msg)
 {
 	union hidpp10_message read_buffer;
diff --git a/src/hidpp10.h b/src/hidpp10.h
index 41181404..dc096da4 100644
--- a/src/hidpp10.h
+++ b/src/hidpp10.h
@@ -36,25 +36,8 @@
 
 struct hidpp10_device;
 
-struct _hidpp10_message {
-	uint8_t report_id;
-	uint8_t device_idx;
-	uint8_t sub_id;
-	uint8_t address;
-	union {
-		uint8_t parameters[3];
-		uint8_t string[16];
-	};
-} __attribute__((packed));
-
-union hidpp10_message {
-	struct _hidpp10_message msg;
-	uint8_t data[LONG_MESSAGE_LENGTH];
-};
-
 void hidpp10_device_destroy(struct hidpp10_device *dev);
 
-int hidpp10_request_command(struct hidpp10_device *device, union hidpp10_message *msg);
 struct hidpp10_device *hidpp10_device_new_from_wpid(const struct hidpp_device *base,
 						    uint16_t wpid);
 struct hidpp10_device *hidpp10_device_new_from_idx(const struct hidpp_device *base,