diff --git a/ql/src/codeql_ruby/ast/Statement.qll b/ql/src/codeql_ruby/ast/Statement.qll
index 7557799e712..b4d7ff892db 100644
--- a/ql/src/codeql_ruby/ast/Statement.qll
+++ b/ql/src/codeql_ruby/ast/Statement.qll
@@ -11,8 +11,6 @@ private import codeql_ruby.controlflow.internal.ControlFlowGraphImpl
 class Stmt extends AstNode {
   override Stmt::Range range;
 
-  Stmt() { this = range }
-
   /** Gets a control-flow node for this statement, if any. */
   CfgNodes::AstCfgNode getAControlFlowNode() { result.getNode() = this }
 
diff --git a/ql/src/codeql_ruby/controlflow/CfgNodes.qll b/ql/src/codeql_ruby/controlflow/CfgNodes.qll
index 9b419871753..4ab22541942 100644
--- a/ql/src/codeql_ruby/controlflow/CfgNodes.qll
+++ b/ql/src/codeql_ruby/controlflow/CfgNodes.qll
@@ -135,14 +135,16 @@ abstract private class ExprChildMapping extends Expr {
    */
   abstract predicate relevantChild(Expr child);
 
-  private AstNode getAChildStar() {
+  private Generated::AstNode getAChildStar() {
     result = this
     or
     result.(Generated::AstNode).getParent() = this.getAChildStar()
   }
 
   pragma[noinline]
-  private BasicBlock getABasicBlockInScope() { result.getANode().getNode() = this.getAChildStar() }
+  private BasicBlock getABasicBlockInScope() {
+    result.getANode() = TAstNode(this.getAChildStar(), _)
+  }
 
   pragma[nomagic]
   private predicate reachesBasicBlockBase(Expr child, CfgNode cfn, BasicBlock bb) {