diff --git a/cpp/ql/lib/semmle/code/cpp/XML.qll b/cpp/ql/lib/semmle/code/cpp/XML.qll
index 9495e80d8c1..7ad790b2b48 100755
--- a/cpp/ql/lib/semmle/code/cpp/XML.qll
+++ b/cpp/ql/lib/semmle/code/cpp/XML.qll
@@ -36,12 +36,12 @@ class XmlLocatable extends @xmllocatable, TXmlLocatable {
 deprecated class XMLLocatable = XmlLocatable;
 
 /**
- * An `XMLParent` is either an `XMLElement` or an `XMLFile`,
+ * An `XmlParent` is either an `XmlElement` or an `XmlFile`,
  * both of which can contain other elements.
  */
 class XmlParent extends @xmlparent {
   XmlParent() {
-    // explicitly restrict `this` to be either an `XMLElement` or an `XMLFile`;
+    // explicitly restrict `this` to be either an `XmlElement` or an `XmlFile`;
     // the type `@xmlparent` currently also includes non-XML files
     this instanceof @xmlelement or xmlEncoding(this, _)
   }
diff --git a/csharp/ql/lib/semmle/code/csharp/XML.qll b/csharp/ql/lib/semmle/code/csharp/XML.qll
index 9495e80d8c1..7ad790b2b48 100755
--- a/csharp/ql/lib/semmle/code/csharp/XML.qll
+++ b/csharp/ql/lib/semmle/code/csharp/XML.qll
@@ -36,12 +36,12 @@ class XmlLocatable extends @xmllocatable, TXmlLocatable {
 deprecated class XMLLocatable = XmlLocatable;
 
 /**
- * An `XMLParent` is either an `XMLElement` or an `XMLFile`,
+ * An `XmlParent` is either an `XmlElement` or an `XmlFile`,
  * both of which can contain other elements.
  */
 class XmlParent extends @xmlparent {
   XmlParent() {
-    // explicitly restrict `this` to be either an `XMLElement` or an `XMLFile`;
+    // explicitly restrict `this` to be either an `XmlElement` or an `XmlFile`;
     // the type `@xmlparent` currently also includes non-XML files
     this instanceof @xmlelement or xmlEncoding(this, _)
   }
diff --git a/java/ql/lib/semmle/code/xml/XML.qll b/java/ql/lib/semmle/code/xml/XML.qll
index 9495e80d8c1..7ad790b2b48 100755
--- a/java/ql/lib/semmle/code/xml/XML.qll
+++ b/java/ql/lib/semmle/code/xml/XML.qll
@@ -36,12 +36,12 @@ class XmlLocatable extends @xmllocatable, TXmlLocatable {
 deprecated class XMLLocatable = XmlLocatable;
 
 /**
- * An `XMLParent` is either an `XMLElement` or an `XMLFile`,
+ * An `XmlParent` is either an `XmlElement` or an `XmlFile`,
  * both of which can contain other elements.
  */
 class XmlParent extends @xmlparent {
   XmlParent() {
-    // explicitly restrict `this` to be either an `XMLElement` or an `XMLFile`;
+    // explicitly restrict `this` to be either an `XmlElement` or an `XmlFile`;
     // the type `@xmlparent` currently also includes non-XML files
     this instanceof @xmlelement or xmlEncoding(this, _)
   }
diff --git a/javascript/ql/lib/semmle/javascript/XML.qll b/javascript/ql/lib/semmle/javascript/XML.qll
index 9495e80d8c1..7ad790b2b48 100755
--- a/javascript/ql/lib/semmle/javascript/XML.qll
+++ b/javascript/ql/lib/semmle/javascript/XML.qll
@@ -36,12 +36,12 @@ class XmlLocatable extends @xmllocatable, TXmlLocatable {
 deprecated class XMLLocatable = XmlLocatable;
 
 /**
- * An `XMLParent` is either an `XMLElement` or an `XMLFile`,
+ * An `XmlParent` is either an `XmlElement` or an `XmlFile`,
  * both of which can contain other elements.
  */
 class XmlParent extends @xmlparent {
   XmlParent() {
-    // explicitly restrict `this` to be either an `XMLElement` or an `XMLFile`;
+    // explicitly restrict `this` to be either an `XmlElement` or an `XmlFile`;
     // the type `@xmlparent` currently also includes non-XML files
     this instanceof @xmlelement or xmlEncoding(this, _)
   }
diff --git a/python/ql/lib/semmle/python/xml/XML.qll b/python/ql/lib/semmle/python/xml/XML.qll
index 9495e80d8c1..7ad790b2b48 100755
--- a/python/ql/lib/semmle/python/xml/XML.qll
+++ b/python/ql/lib/semmle/python/xml/XML.qll
@@ -36,12 +36,12 @@ class XmlLocatable extends @xmllocatable, TXmlLocatable {
 deprecated class XMLLocatable = XmlLocatable;
 
 /**
- * An `XMLParent` is either an `XMLElement` or an `XMLFile`,
+ * An `XmlParent` is either an `XmlElement` or an `XmlFile`,
  * both of which can contain other elements.
  */
 class XmlParent extends @xmlparent {
   XmlParent() {
-    // explicitly restrict `this` to be either an `XMLElement` or an `XMLFile`;
+    // explicitly restrict `this` to be either an `XmlElement` or an `XmlFile`;
     // the type `@xmlparent` currently also includes non-XML files
     this instanceof @xmlelement or xmlEncoding(this, _)
   }