diff --git a/packages/mermaid/src/config.type.ts b/packages/mermaid/src/config.type.ts
index 2cc4aed254..79f4243151 100644
--- a/packages/mermaid/src/config.type.ts
+++ b/packages/mermaid/src/config.type.ts
@@ -1350,7 +1350,6 @@ export interface SequenceDiagramConfig extends BaseDiagramConfig {
   messageFont?: FontCalculator;
   noteFont?: FontCalculator;
   actorFont?: FontCalculator;
-  textPlacement?: string;
 }
 /**
  * The object containing configurations specific for flowcharts