diff --git a/src/ScriptEditor/NetscriptDefinitions.d.ts b/src/ScriptEditor/NetscriptDefinitions.d.ts
index 23d181f9b..5e134e0a3 100644
--- a/src/ScriptEditor/NetscriptDefinitions.d.ts
+++ b/src/ScriptEditor/NetscriptDefinitions.d.ts
@@ -6120,7 +6120,7 @@ export interface OfficeAPI {
    */
   hireAdVert(divisionName: string): void;
   /**
-   * purchace a research
+   * Purchase a research
    * @param divisionName - Name of the division
    * @param researchName - Name of the research
    */