diff --git a/ql/src/codeql_ruby/ast/Expr.qll b/ql/src/codeql_ruby/ast/Expr.qll
index f584b7f96f7..6f27b0462bc 100644
--- a/ql/src/codeql_ruby/ast/Expr.qll
+++ b/ql/src/codeql_ruby/ast/Expr.qll
@@ -73,8 +73,8 @@ class StmtSequence extends Expr, TStmtSequence {
   /** Gets a statement in this sequence. */
   final Stmt getAStmt() { result = this.getStmt(_) }
 
-  /** Gets the last expression in this sequence, if any. */
-  final Expr getLastExpr() { result = this.getStmt(this.getNumberOfStatements() - 1) }
+  /** Gets the last statement in this sequence, if any. */
+  final Stmt getLastStmt() { result = this.getStmt(this.getNumberOfStatements() - 1) }
 
   /** Gets the number of statements in this sequence. */
   final int getNumberOfStatements() { result = count(this.getAStmt()) }
diff --git a/ql/src/codeql_ruby/controlflow/CfgNodes.qll b/ql/src/codeql_ruby/controlflow/CfgNodes.qll
index d67849934fc..3a80fffbae4 100644
--- a/ql/src/codeql_ruby/controlflow/CfgNodes.qll
+++ b/ql/src/codeql_ruby/controlflow/CfgNodes.qll
@@ -284,7 +284,7 @@ module ExprNodes {
   }
 
   private class StmtSequenceChildMapping extends ExprChildMapping, StmtSequence {
-    override predicate relevantChild(Expr e) { e = this.getLastExpr() }
+    override predicate relevantChild(Expr e) { e = this.getLastStmt() }
   }
 
   /** A control-flow node that wraps a `StmtSequence` AST expression. */
@@ -293,8 +293,8 @@ module ExprNodes {
 
     final override StmtSequence getExpr() { result = ExprCfgNode.super.getExpr() }
 
-    /** Gets the last expression in this sequence, if any. */
-    final ExprCfgNode getLastExpr() { e.hasCfgChild(e.getLastExpr(), this, result) }
+    /** Gets the last statement in this sequence, if any. */
+    final ExprCfgNode getLastStmt() { e.hasCfgChild(e.getLastStmt(), this, result) }
   }
 
   private class ForExprChildMapping extends ExprChildMapping, ForExpr {
diff --git a/ql/src/codeql_ruby/controlflow/internal/Completion.qll b/ql/src/codeql_ruby/controlflow/internal/Completion.qll
index b25098b2a06..dc80bbb98f2 100644
--- a/ql/src/codeql_ruby/controlflow/internal/Completion.qll
+++ b/ql/src/codeql_ruby/controlflow/internal/Completion.qll
@@ -176,7 +176,7 @@ private predicate inBooleanContext(AstNode n) {
   or
   n = any(NotExpr parent | inBooleanContext(parent)).getOperand()
   or
-  n = any(StmtSequence parent | inBooleanContext(parent)).getLastExpr()
+  n = any(StmtSequence parent | inBooleanContext(parent)).getLastStmt()
   or
   exists(CaseExpr c, WhenExpr w |
     not exists(c.getValue()) and
diff --git a/ql/src/codeql_ruby/controlflow/internal/Splitting.qll b/ql/src/codeql_ruby/controlflow/internal/Splitting.qll
index 7a81548ed5d..8543c64f055 100644
--- a/ql/src/codeql_ruby/controlflow/internal/Splitting.qll
+++ b/ql/src/codeql_ruby/controlflow/internal/Splitting.qll
@@ -226,7 +226,7 @@ private module ConditionalCompletionSplitting {
         last(succ.(LogicalOrExpr).getAnOperand(), pred, c) and
         completion = c
         or
-        last(succ.(ParenthesizedExpr).getLastExpr(), pred, c) and
+        last(succ.(StmtSequence).getLastStmt(), pred, c) and
         completion = c
         or
         last(succ.(ConditionalExpr).getBranch(_), pred, c) and
diff --git a/ql/src/codeql_ruby/dataflow/internal/DataFlowPrivate.qll b/ql/src/codeql_ruby/dataflow/internal/DataFlowPrivate.qll
index 222fa8ac7bb..2352f9c4693 100644
--- a/ql/src/codeql_ruby/dataflow/internal/DataFlowPrivate.qll
+++ b/ql/src/codeql_ruby/dataflow/internal/DataFlowPrivate.qll
@@ -126,7 +126,7 @@ private module Cached {
     or
     nodeFrom.asExpr() = nodeTo.asExpr().(CfgNodes::ExprNodes::AssignExprCfgNode).getRhs()
     or
-    nodeFrom.asExpr() = nodeTo.asExpr().(CfgNodes::ExprNodes::StmtSequenceCfgNode).getLastExpr()
+    nodeFrom.asExpr() = nodeTo.asExpr().(CfgNodes::ExprNodes::StmtSequenceCfgNode).getLastStmt()
     or
     nodeFrom.asExpr() = nodeTo.asExpr().(CfgNodes::ExprNodes::ConditionalExprCfgNode).getBranch(_)
     or