diff --git a/src/lib/es2019.string.d.ts b/src/lib/es2019.string.d.ts
index a0cde55c2e5..9d97779745f 100644
--- a/src/lib/es2019.string.d.ts
+++ b/src/lib/es2019.string.d.ts
@@ -5,9 +5,9 @@ interface String {
   /** Removes the leading white space and line terminator characters from a string. */
   trimStart(): string;
 
-  /** Removes the trailing white space and line terminator characters from a string. */
+  /** Removes the leading white space and line terminator characters from a string. */
   trimLeft(): string;
 
-  /** Removes the leading white space and line terminator characters from a string. */
+  /** Removes the trailing white space and line terminator characters from a string. */
   trimRight(): string;
 }