diff --git a/packages/grafana-ui/src/components/FileDropzone/FileDropzone.tsx b/packages/grafana-ui/src/components/FileDropzone/FileDropzone.tsx
index ad0c6039118..4b540b76c1c 100644
--- a/packages/grafana-ui/src/components/FileDropzone/FileDropzone.tsx
+++ b/packages/grafana-ui/src/components/FileDropzone/FileDropzone.tsx
@@ -311,6 +311,8 @@ function getStyles(theme: GrafanaTheme2, isDragActive?: boolean) {
       justifyContent: 'center',
     }),
     dropzone: css({
+      height: '100%',
+      width: '100%',
       display: 'flex',
       flexDirection: 'column',
     }),