diff --git a/ports/geckolib/gecko_style_structs.rs b/ports/geckolib/gecko_style_structs.rs
index ab0dc6a6bcc..ac0b6393a85 100644
--- a/ports/geckolib/gecko_style_structs.rs
+++ b/ports/geckolib/gecko_style_structs.rs
@@ -1884,6 +1884,7 @@ pub struct nsISupports {
 }
 #[repr(C)]
 pub struct _vftable_nsISupports {
+    pub _bindgen_empty_ctype_warning_fix: u64,
 }
 impl ::std::clone::Clone for nsISupports {
     fn clone(&self) -> Self { *self }
@@ -3738,6 +3739,7 @@ pub struct CounterStyle {
 }
 #[repr(C)]
 pub struct _vftable_CounterStyle {
+    pub _bindgen_empty_ctype_warning_fix: u64,
 }
 impl ::std::clone::Clone for CounterStyle {
     fn clone(&self) -> Self { *self }