diff --git a/.changeset/ninety-roses-turn.md b/.changeset/ninety-roses-turn.md
index a37c6c9e8..1eb3a8189 100644
--- a/.changeset/ninety-roses-turn.md
+++ b/.changeset/ninety-roses-turn.md
@@ -2,6 +2,6 @@
 'mermaid': patch
 ---
 
-fix:Add validation for blocks exceeding column width.
+fix: Add validation for blocks exceeding column width
 
 This update adds a validation check that triggers an error message when a block's width exceeds the defined column layout.
diff --git a/packages/mermaid/src/diagrams/block/blockDB.ts b/packages/mermaid/src/diagrams/block/blockDB.ts
index 27702bb32..8831ad90e 100644
--- a/packages/mermaid/src/diagrams/block/blockDB.ts
+++ b/packages/mermaid/src/diagrams/block/blockDB.ts
@@ -102,7 +102,9 @@ const populateBlockDatabase = (_blockList: Block[], parent: Block): void => {
       typeof block.widthInColumns === 'number' &&
       block.widthInColumns > column
     ) {
-      throw new Error(`width of block ${block.id} is greater than the column width`);
+      throw new Error(
+        `Block ${block.id} width ${block.widthInColumns} exceeds configured column width ${column}`
+      );
     }
     if (block.label) {
       block.label = sanitizeText(block.label);