diff --git a/src/store/reducers/editor/index.ts b/src/store/reducers/editor/index.ts
index 8fae73b..18361ac 100644
--- a/src/store/reducers/editor/index.ts
+++ b/src/store/reducers/editor/index.ts
@@ -268,7 +268,7 @@ export const slice = createSlice({
     },
     setInitialViewBoxScale: (state, action) => {
       state.initialViewBoxScale = action.payload;
-      state.initialViewBoxScaleForWidth = document.getElementById(ids.workspace).clientWidth;
+      state.initialViewBoxScaleForWidth = document.getElementById(ids.workspace)?.clientWidth;
     },
     setVisibilityOffset: (state, action) => {
       state.visibilityOffset = action.payload;
diff --git a/src/utils/workspace.ts b/src/utils/workspace.ts
index 5a99d4d..952d5b8 100644
--- a/src/utils/workspace.ts
+++ b/src/utils/workspace.ts
@@ -24,7 +24,7 @@ export const getWorkspaceCenterY = () => {
 
 export const getScaleFactorAccountingForViewBoxWidth = (scaleFactor: number, initialViewBoxScaleForWidth?: number) => {
   if (initialViewBoxScaleForWidth) {
-    const currentWidth = document.getElementById(ids.workspace).clientWidth;
+    const currentWidth = document.getElementById(ids.workspace)?.clientWidth;
     const ratio = currentWidth / initialViewBoxScaleForWidth;
     scaleFactor *= ratio >= 1 ? ratio : ratio * 1.25;
   }