diff --git a/libsigrok-internal.h b/libsigrok-internal.h
index 2cb8fe4e..2a8503ab 100644
--- a/libsigrok-internal.h
+++ b/libsigrok-internal.h
@@ -61,6 +61,11 @@ struct sr_serial_dev_inst {
 	int fd;
 };
 
+/* Private driver context. */
+struct drv_context {
+	GSList *instances;
+};
+
 /*--- log.c -----------------------------------------------------------------*/
 
 SR_PRIV int sr_log(int loglevel, const char *format, ...);
diff --git a/libsigrok.h b/libsigrok.h
index 9ee524d9..3771e1ee 100644
--- a/libsigrok.h
+++ b/libsigrok.h
@@ -560,11 +560,6 @@ struct sr_dev_driver {
 	void *priv;
 };
 
-/* Private driver context. */
-struct drv_context {
-	GSList *instances;
-};
-
 struct sr_session {
 	/* List of struct sr_dev* */
 	GSList *devs;