diff --git a/core/core-frontend/src/views/chart/components/editor/editor-style/components/BasicStyleSelector.vue b/core/core-frontend/src/views/chart/components/editor/editor-style/components/BasicStyleSelector.vue
index 0fa8084a8d..dc35ba0e25 100644
--- a/core/core-frontend/src/views/chart/components/editor/editor-style/components/BasicStyleSelector.vue
+++ b/core/core-frontend/src/views/chart/components/editor/editor-style/components/BasicStyleSelector.vue
@@ -567,6 +567,7 @@ onMounted(() => {
               :effect="themes"
               :min="1"
               :max="18"
+              :step="0.1"
               v-model="state.basicStyleForm.zoomLevel"
               @change="changeBasicStyle('zoomLevel')"
             />