diff --git a/packages/mermaid/src/diagrams/sequence/sequenceRenderer.ts b/packages/mermaid/src/diagrams/sequence/sequenceRenderer.ts
index 70f7f117b..6bb3c654e 100644
--- a/packages/mermaid/src/diagrams/sequence/sequenceRenderer.ts
+++ b/packages/mermaid/src/diagrams/sequence/sequenceRenderer.ts
@@ -425,7 +425,14 @@ const drawMessage = async function (diagram, msgModel, lineStartY: number, diagO
     }
   } else {
     line = diagram.append('line');
-    line.attr('x1', startx);
+    let adjustedStartx = startx;
+    if (
+      type === diagObj.db.LINETYPE.BIDIRECTIONAL_DOTTED ||
+      type === diagObj.db.LINETYPE.BIDIRECTIONAL_SOLID
+    ) {
+      startx < stopx ? (adjustedStartx += 3) : (adjustedStartx -= 3);
+    }
+    line.attr('x1', adjustedStartx);
     line.attr('y1', lineStartY);
     line.attr('x2', stopx);
     line.attr('y2', lineStartY);