diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y
index 7b025db23..d0d6a5fe1 100644
--- a/frontends/verilog/verilog_parser.y
+++ b/frontends/verilog/verilog_parser.y
@@ -135,6 +135,9 @@ static void free_attr(std::map<std::string, AstNode*> *al)
 %left OP_POW
 %right UNARY_OPS
 
+%define parse.error verbose
+%define parse.lac full
+
 %expect 2
 %debug