diff --git a/PExpr.cc b/PExpr.cc
index ff67da5e0..9038db959 100644
--- a/PExpr.cc
+++ b/PExpr.cc
@@ -142,6 +142,11 @@ PECastSize::~PECastSize()
 {
 }
 
+bool PECastSize::has_aa_term(Design *des, NetScope *scope) const
+{
+	return base_->has_aa_term(des, scope);
+}
+
 PECastType::PECastType(data_type_t*t, PExpr*b)
 : target_(t), base_(b)
 {
@@ -151,12 +156,22 @@ PECastType::~PECastType()
 {
 }
 
+bool PECastType::has_aa_term(Design *des, NetScope *scope) const
+{
+	return base_->has_aa_term(des, scope);
+}
+
 PECastSign::PECastSign(bool signed_flag, PExpr *base)
 : base_(base)
 {
     signed_flag_ = signed_flag;
 }
 
+bool PECastSign::has_aa_term(Design *des, NetScope *scope) const
+{
+	return base_->has_aa_term(des, scope);
+}
+
 PEBComp::PEBComp(char op, PExpr*l, PExpr*r)
 : PEBinary(op, l, r)
 {
diff --git a/PExpr.h b/PExpr.h
index f84e7d290..c765bec36 100644
--- a/PExpr.h
+++ b/PExpr.h
@@ -972,6 +972,8 @@ class PECastSize  : public PExpr {
 				     unsigned expr_wid,
                                      unsigned flags) const;
 
+      virtual bool has_aa_term(Design *des, NetScope *scope) const;
+
       virtual unsigned test_width(Design*des, NetScope*scope,
 				  width_mode_t&mode);
 
@@ -997,6 +999,8 @@ class PECastType  : public PExpr {
       virtual NetExpr*elaborate_expr(Design*des, NetScope*scope,
 				     unsigned expr_wid, unsigned flags) const;
 
+      virtual bool has_aa_term(Design *des, NetScope *scope) const;
+
       virtual unsigned test_width(Design*des, NetScope*scope,
 				  width_mode_t&mode);
 
@@ -1020,6 +1024,8 @@ class PECastSign : public PExpr {
       NetExpr* elaborate_expr(Design *des, NetScope *scope,
 			      unsigned expr_wid, unsigned flags) const;
 
+      virtual bool has_aa_term(Design *des, NetScope *scope) const;
+
       unsigned test_width(Design *des, NetScope *scope, width_mode_t &mode);
 
     private: