diff --git a/cpp/ql/lib/semmle/code/cpp/Type.qll b/cpp/ql/lib/semmle/code/cpp/Type.qll
index fa2d2d605d8..4069b58134b 100644
--- a/cpp/ql/lib/semmle/code/cpp/Type.qll
+++ b/cpp/ql/lib/semmle/code/cpp/Type.qll
@@ -1071,7 +1071,7 @@ class NullPointerType extends BuiltInType {
  * const float fa[40];
  * ```
  */
-class DerivedType extends Type, @derivedtype {
+class DerivedType extends Type, NameQualifyingElement, @derivedtype {
   override string toString() { result = this.getName() }
 
   override string getName() { derivedtypes(underlyingElement(this), result, _, _) }
diff --git a/cpp/ql/lib/semmlecode.cpp.dbscheme b/cpp/ql/lib/semmlecode.cpp.dbscheme
index ef8d209a22e..0853f43dc8c 100644
--- a/cpp/ql/lib/semmlecode.cpp.dbscheme
+++ b/cpp/ql/lib/semmlecode.cpp.dbscheme
@@ -1430,7 +1430,8 @@ specialnamequalifyingelements(
 @namequalifyingelement = @namespace
                        | @specialnamequalifyingelement
                        | @usertype
-                       | @decltype;
+                       | @decltype
+                       | @derivedtype;
 
 namequalifiers(
     unique int id: @namequalifier,
diff --git a/cpp/ql/test/library-tests/name_qualifiers/DB-CHECK.expected b/cpp/ql/test/library-tests/name_qualifiers/DB-CHECK.expected
deleted file mode 100644
index e27957d308d..00000000000
--- a/cpp/ql/test/library-tests/name_qualifiers/DB-CHECK.expected
+++ /dev/null
@@ -1,5 +0,0 @@
-[VALUE_NOT_IN_TYPE] predicate namequalifiers(@namequalifier id, @namequalifiableelement qualifiableelement, @namequalifyingelement qualifyingelement, @location_default location): Value 272 of field qualifyingelement is not in type @namequalifyingelement. The value is however in the following types: @type_with_specifiers. Appears in tuple (-16777185,-16777184,272,307)
-	Relevant element: qualifyingelement=272
-		Full ID for 272: @"typeref_const(216)". The ID may expand to @"typeref_const{@"type_decl_s_nonproto[struct_complete]_{@"namespace_decl_(namespace line:1, {@"/Users/jketema/development/semmle-code/ql/cpp/ql/test/library-tests/name_qualifiers/inconsistency2.cpp;sourcefile"}){@"not_inline"}"}_321bfec50edc"}"
-	Relevant element: location=307
-		Full ID for 307: @"loc,(212),3,3,3,11". The ID may expand to @"loc,{@"/Users/jketema/development/semmle-code/ql/cpp/ql/test/library-tests/name_qualifiers/inconsistency2.cpp;sourcefile"},3,3,3,11"
diff --git a/cpp/ql/test/library-tests/name_qualifiers/NameQualifiers1.expected b/cpp/ql/test/library-tests/name_qualifiers/NameQualifiers1.expected
index d9419b833a1..b5f2fe8dd74 100644
--- a/cpp/ql/test/library-tests/name_qualifiers/NameQualifiers1.expected
+++ b/cpp/ql/test/library-tests/name_qualifiers/NameQualifiers1.expected
@@ -1,5 +1,5 @@
 | inconsistency2.cpp:3:3:3:5 | T:: | inconsistency2.cpp:3:3:3:6 | x | inconsistency2.cpp:2:20:2:20 | T |
-| inconsistency2.cpp:3:3:3:11 | (no string representation) | inconsistency2.cpp:3:3:3:6 | x | file://:0:0:0:0 | const s |
+| inconsistency2.cpp:3:3:3:11 | const s:: | inconsistency2.cpp:3:3:3:6 | x | file://:0:0:0:0 | const s |
 | inconsistency.cpp:7:20:7:22 | S:: | inconsistency.cpp:7:20:7:23 | (int)... | inconsistency.cpp:4:8:4:8 | S |
 | inconsistency.cpp:7:20:7:22 | S:: | inconsistency.cpp:7:20:7:23 | A | inconsistency.cpp:4:8:4:8 | S |
 | name_qualifiers.cpp:29:7:29:8 | :: | name_qualifiers.cpp:29:7:29:9 | x | file://:0:0:0:0 | (global namespace) |