diff --git a/BUILD.gn b/BUILD.gn
index 5ae6488..160f624 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -120,7 +120,6 @@
   configs += [ ":vim_config" ]
 
   deps = [ "//sdk/lib/fdio" ]
-  public_deps = [ "//sdk/fidl/fuchsia.hardware.pty:fuchsia.hardware.pty_c" ]
 }
 
 package("vim") {
diff --git a/src/os_fuchsia.c b/src/os_fuchsia.c
index 07d73b0..a5a0c6d 100644
--- a/src/os_fuchsia.c
+++ b/src/os_fuchsia.c
@@ -10,8 +10,7 @@
 
 #include "vim.h"
 
-#include <fuchsia/hardware/pty/c/fidl.h>
-#include <lib/fdio/unsafe.h>
+#include <sys/ioctl.h>
 
 /*
  * Get the current window size in Rows and Columns.
@@ -23,17 +22,13 @@
         return -1;
     }
 
-    fdio_t* io = fdio_unsafe_fd_to_io(STDIN_FILENO);
-    fuchsia_hardware_pty_WindowSize wsz;
-    zx_status_t status;
-    zx_status_t call_status = fuchsia_hardware_pty_DeviceGetWindowSize(
-        fdio_unsafe_borrow_channel(io), &status, &wsz);
-    fdio_unsafe_release(io);
-    if (call_status != ZX_OK || status != ZX_OK) {
+    struct winsize sz;
+    memset(&sz, 0, sizeof(sz));
+    if (ioctl(STDIN_FILENO, TIOCGWINSZ, &sz) != 0) {
         return -1;
     }
-    Columns = wsz.height;
-    Rows = wsz.width;
+    Columns = sz.ws_col;
+    Rows = sz.ws_row;
     return OK;
 }