diff --git a/ql/src/codeql_ruby/ast/internal/Pattern.qll b/ql/src/codeql_ruby/ast/internal/Pattern.qll
index fb9deab291a..e18788255cb 100644
--- a/ql/src/codeql_ruby/ast/internal/Pattern.qll
+++ b/ql/src/codeql_ruby/ast/internal/Pattern.qll
@@ -42,7 +42,7 @@ predicate implicitParameterAssignmentNode(Generated::AstNode n, Callable::Range
 }
 
 module Pattern {
-  class Range extends AstNode::Range {
+  abstract class Range extends AstNode::Range {
     cached
     Range() {
       explicitAssignmentNode(this, _)