diff --git a/src/app/app.h b/src/app/app.h
index b8f8639..b789a81 100644
--- a/src/app/app.h
+++ b/src/app/app.h
@@ -407,7 +407,7 @@ void ORCA_IMPORT(oc_request_quit)(void);
 
 void ORCA_IMPORT(oc_runtime_window_set_title)(oc_str8 title);
 
-void ORCA_IMPORT(oc_runtime_window_set_size)(f32 width, f32 height);
+void ORCA_IMPORT(oc_runtime_window_set_size)(oc_vec2 size);
 
 #endif // !defined(OC_PLATFORM_ORCA) || !(OC_PLATFORM_ORCA)
 
diff --git a/src/runtime.c b/src/runtime.c
index 8a820ec..47e6b2b 100644
--- a/src/runtime.c
+++ b/src/runtime.c
@@ -92,9 +92,9 @@ void oc_runtime_window_set_title(oc_str8 title)
     }
 }
 
-void oc_runtime_window_set_size(f32 width, f32 height)
+void oc_runtime_window_set_size(oc_vec2 size)
 {
-    oc_window_set_content_size(__orcaApp.window, (oc_vec2){ .x = width, .y = height });
+    oc_window_set_content_size(__orcaApp.window, size);
 }
 
 void oc_runtime_log(oc_log_level level,
diff --git a/src/wasmbind/core_api.json b/src/wasmbind/core_api.json
index c237570..7cc1a5f 100644
--- a/src/wasmbind/core_api.json
+++ b/src/wasmbind/core_api.json
@@ -84,10 +84,8 @@
 	"cname": "oc_runtime_window_set_size",
 	"ret": {"name": "void", "tag": "v"},
 	"args": [
-		{ "name": "width",
-		  "type": {"name": "f32", "tag": "f"}},
-		{ "name": "height",
-		  "type": {"name": "f32", "tag": "f"}}
+		{ "name": "size",
+		  "type": {"name": "oc_vec2", "tag": "S"}}
 	]
 }
 ]