diff --git a/src/Stmt.cc b/src/Stmt.cc
index d2b554f439..87860c4ebe 100644
--- a/src/Stmt.cc
+++ b/src/Stmt.cc
@@ -311,7 +311,7 @@ ValPtr PrintStmt::DoExec(std::vector<ValPtr> vals,
 
 ExprStmt::ExprStmt(ExprPtr arg_e) : Stmt(STMT_EXPR), e(std::move(arg_e))
 	{
-	if ( e && e->IsPure() )
+	if ( e && e->IsPure() && e->GetType()->Tag() != TYPE_ERROR )
 		Warn("expression value ignored");
 
 	SetLocationInfo(e->GetLocationInfo());