diff --git a/modules/i3-common.c b/modules/i3-common.c
index 31546b5..95b775b 100644
--- a/modules/i3-common.c
+++ b/modules/i3-common.c
@@ -258,6 +258,10 @@ i3_receive_loop(int abort_fd, int sock,
                 pkt_handler = cbs->reply_sync;
                 break;
 #endif
+            /* Sway extensions */
+            case 100:  /* IPC_GET_INPUTS */
+                pkt_handler = cbs->reply_inputs;
+                break;
 
             case I3_IPC_EVENT_WORKSPACE:
                 pkt_handler = cbs->event_workspace;
diff --git a/modules/i3-common.h b/modules/i3-common.h
index 975d42a..0d48037 100644
--- a/modules/i3-common.h
+++ b/modules/i3-common.h
@@ -29,6 +29,7 @@ struct i3_ipc_callbacks {
     i3_ipc_callback_t reply_config;
     i3_ipc_callback_t reply_tick;
     i3_ipc_callback_t reply_sync;
+    i3_ipc_callback_t reply_inputs;
 
     i3_ipc_callback_t event_workspace;
     i3_ipc_callback_t event_output;