diff --git a/cpp/ql/lib/semmle/code/cpp/TypedefType.qll b/cpp/ql/lib/semmle/code/cpp/TypedefType.qll
index 6f08764a84a..b7e23efe8d2 100644
--- a/cpp/ql/lib/semmle/code/cpp/TypedefType.qll
+++ b/cpp/ql/lib/semmle/code/cpp/TypedefType.qll
@@ -116,7 +116,7 @@ class AliasTemplateType extends TypeAliasType {
   override string getAPrimaryQlClass() { result = "AliasTemplateType" }
 
   /**
-   * Gets a alias instantiated from this template.
+   * Gets an alias instantiated from this template.
    *
    * For example for `MyAliasTemplate<T>` in the following code, the results are
    * `MyAliasTemplate<int>` and `MyAliasTemplate<long>`: