diff --git a/packages/blockly/core/workspace_svg.ts b/packages/blockly/core/workspace_svg.ts
index c693225970f..59a1402b932 100644
--- a/packages/blockly/core/workspace_svg.ts
+++ b/packages/blockly/core/workspace_svg.ts
@@ -1987,8 +1987,9 @@ export class WorkspaceSvg
    *
    * @param id ID of block center on.
    * @param blockOnly True to center only on the block itself, not its stack.
+   * @param centerOnBlockStart It is correct to center only on the block itself at its beginning.
    */
-  centerOnBlock(id: string | null, blockOnly?: boolean) {
+  centerOnBlock(id: string | null, blockOnly?: boolean, centerOnBlockStart?: boolean) {
     if (!this.isMovable()) {
       console.warn(
         'Tried to move a non-movable workspace. This could result' +
@@ -2010,7 +2011,9 @@ export class WorkspaceSvg
       : block.getHeightWidth();
 
     // Find the enter of the block in workspace units.
-    const blockCenterY = xy.y + heightWidth.height / 2;
+    const blockCenterY = centerOnBlockStart
+      ? xy.y
+      : xy.y + heightWidth.height / 2;
 
     // In RTL the block's position is the top right of the block, not top left.
     const multiplier = this.RTL ? -1 : 1;