diff --git a/.changes/fix-window-inner-size-crash.md b/.changes/fix-window-inner-size-crash.md
new file mode 100644
index 000000000..dc8d6af1e
--- /dev/null
+++ b/.changes/fix-window-inner-size-crash.md
@@ -0,0 +1,5 @@
+---
+"tauri-runtime-wry": patch:bug
+---
+
+Fixes `inner_size` crash when the window has no webviews.
diff --git a/core/tauri-runtime-wry/src/lib.rs b/core/tauri-runtime-wry/src/lib.rs
index 834647ca1..85914c3a5 100644
--- a/core/tauri-runtime-wry/src/lib.rs
+++ b/core/tauri-runtime-wry/src/lib.rs
@@ -4082,7 +4082,7 @@ fn inner_size(
   webviews: &[WebviewWrapper],
   has_children: bool,
 ) -> TaoPhysicalSize<u32> {
-  if !has_children {
+  if !has_children && webviews.len() > 0 {
     use wry::WebViewExtMacOS;
     let webview = webviews.first().unwrap();
     let view_frame = unsafe { cocoa::appkit::NSView::frame(webview.webview()) };