diff --git a/packages/compiler-cli/ngcc/src/host/commonjs_umd_utils.ts b/packages/compiler-cli/ngcc/src/host/commonjs_umd_utils.ts
index 276bbbbce6..52fe529f9a 100644
--- a/packages/compiler-cli/ngcc/src/host/commonjs_umd_utils.ts
+++ b/packages/compiler-cli/ngcc/src/host/commonjs_umd_utils.ts
@@ -25,9 +25,11 @@ export interface ExportStatement extends ts.ExpressionStatement {
 }
 
 /**
- * A CommonJS or UMD re-export statement.
+ * A CommonJS or UMD wildcard re-export statement.
  *
- * In CommonJS/UMD, re-export statements can have several forms (depending, for example, on whether
+ * The CommonJS or UMD version of `export * from 'blah';`.
+ *
+ * These statements can have several forms (depending, for example, on whether
  * the TypeScript helpers are imported or emitted inline). The expression can have one of the
  * following forms:
  * - `__export(firstArg)`
@@ -35,7 +37,7 @@ export interface ExportStatement extends ts.ExpressionStatement {
  * - `tslib.__export(firstArg, exports)`
  * - `tslib.__exportStar(firstArg, exports)`
  *
- * In all cases, we only care about `firstApp`, which is the first argument of the re-export call
+ * In all cases, we only care about `firstArg`, which is the first argument of the re-export call
  * expression and can be either a `require('...')` call or an identifier (initialized via a
  * `require('...')` call).
  */
@@ -76,7 +78,7 @@ export function findRequireCallReference(id: ts.Identifier, checker: ts.TypeChec
 
 /**
  * Check whether the specified `ts.Statement` is an export statement, i.e. an expression statement
- * of the form: `export.<foo> = <bar>`
+ * of the form: `exports.<foo> = <bar>`
  */
 export function isExportStatement(stmt: ts.Statement): stmt is ExportStatement {
   return ts.isExpressionStatement(stmt) && ts.isBinaryExpression(stmt.expression) &&
@@ -87,8 +89,8 @@ export function isExportStatement(stmt: ts.Statement): stmt is ExportStatement {
 }
 
 /**
- * Check whether the specified `ts.Statement` is a re-export statement, i.e. an expression statement
- * of one of the following forms:
+ * Check whether the specified `ts.Statement` is a wildcard re-export statement.
+ * I.E. an expression statement of one of the following forms:
  * - `__export(<foo>)`
  * - `__exportStar(<foo>)`
  * - `tslib.__export(<foo>, exports)`