diff --git a/user/init/main.c b/user/init/main.c
index 00fab3a..0f20d07 100644
--- a/user/init/main.c
+++ b/user/init/main.c
@@ -18,7 +18,7 @@ void tb_runinitscript(void) {
 
     char buf[100];
     string_memset(buf, 0, sizeof(buf));
-    r = ipcpipe(tb, IPCPIPE_OUT, IPCPIPE_READ, (uint8_t *)buf, sizeof(buf)-1);
+    r = ipc_piperead(tb, 0, (uint8_t *const)buf, sizeof(buf)-1);
     if (r > 0) {
       devctl(&termdev, DEV_TERMDEV_PUTCH, (uint8_t *)buf, string_len(buf), 0);
     } else {
diff --git a/user/tb/runtime.c b/user/tb/runtime.c
index 666b1f6..44c0272 100644
--- a/user/tb/runtime.c
+++ b/user/tb/runtime.c
@@ -120,8 +120,8 @@ bool rt_do(Token *tks) {
   StringBuffer outbuf;
   stringbuffer_init(&outbuf);
 
-  ipcpipe(PID, 10, IPCPIPE_MAKE, NULL, 0);
-  ipcpipe(app, IPCPIPE_OUT, IPCPIPE_REPLACE, (uint8_t *)PID, 10);
+  ipc_pipemake(10);
+  ipc_pipeconnect(app, 0, PID, 10);
 
   processctl(app, PCTL_RUN, 0, 0, 0);
 
@@ -129,14 +129,14 @@ bool rt_do(Token *tks) {
     int32_t r;
     char buf[100];
     string_memset(buf, 0, sizeof(buf));
-    
-    r = ipcpipe(app, IPCPIPE_OUT, IPCPIPE_READ, (uint8_t *)buf, sizeof(buf)-1);
+   
+    r = ipc_piperead(app, 0, (uint8_t *const)buf, sizeof(buf)-1);
     if (r > 0) {
       stringbuffer_appendcstr(&outbuf, buf);
     }
   }
 
-  ipcpipe(PID, 10, IPCPIPE_DELETE, NULL, 0);
+  ipc_pipedelete(10);
 
   rtstringv_stackpushcopy(outbuf.data, outbuf.count);