diff --git a/packages/sanity/src/core/form/inputs/PortableText/object/modals/ObjectEditModal.tsx b/packages/sanity/src/core/form/inputs/PortableText/object/modals/ObjectEditModal.tsx
index 557f43c1a83..4130ba79191 100644
--- a/packages/sanity/src/core/form/inputs/PortableText/object/modals/ObjectEditModal.tsx
+++ b/packages/sanity/src/core/form/inputs/PortableText/object/modals/ObjectEditModal.tsx
@@ -42,7 +42,7 @@ export function ObjectEditModal(props: {
     onClose()
   }, [onClose])
 
-  const modalWidth = schemaModalOption?.width || 1
+  const modalWidth = schemaModalOption?.width
 
   if (modalType === 'popover') {
     return (
diff --git a/packages/sanity/src/core/form/inputs/PortableText/object/modals/PopoverModal.tsx b/packages/sanity/src/core/form/inputs/PortableText/object/modals/PopoverModal.tsx
index d7529594b84..f0b99b953c4 100644
--- a/packages/sanity/src/core/form/inputs/PortableText/object/modals/PopoverModal.tsx
+++ b/packages/sanity/src/core/form/inputs/PortableText/object/modals/PopoverModal.tsx
@@ -25,7 +25,7 @@ interface PopoverEditDialogProps {
 const POPOVER_FALLBACK_PLACEMENTS: PopoverProps['fallbackPlacements'] = ['top', 'bottom']
 
 export function PopoverEditDialog(props: PopoverEditDialogProps) {
-  const {floatingBoundary, referenceBoundary, referenceElement, width = 0} = props
+  const {floatingBoundary, referenceBoundary, referenceElement, width = 1} = props
   const [open, setOpen] = useState(false)
 
   // This hook is here to set open after the initial render.