diff --git a/frontends/ast/simplify.cc b/frontends/ast/simplify.cc
index 1b98166e5..95dca27d8 100644
--- a/frontends/ast/simplify.cc
+++ b/frontends/ast/simplify.cc
@@ -3250,7 +3250,7 @@ skip_dynamic_range_lvalue_expansion:;
 	if (stage > 1 && type == AST_IDENTIFIER && id2ast != nullptr && id2ast->type == AST_MEMORY && !in_lvalue &&
 			children.size() == 1 && children[0]->type == AST_RANGE && children[0]->children.size() == 1) {
 		if (integer < (unsigned)id2ast->unpacked_dimensions)
-			input_error("Insufficient number of array indices for %s.\n", log_id(str));
+			input_error("Insufficient number of array indices for %s.\n", RTLIL::unescape_id(str));
 		newNode = std::make_unique<AstNode>(location, AST_MEMRD, children[0]->children[0]->clone());
 		newNode->str = str;
 		newNode->id2ast = id2ast;
@@ -3523,7 +3523,7 @@ skip_dynamic_range_lvalue_expansion:;
 			(children[0]->children.size() == 1 || children[0]->children.size() == 2) && children[0]->children[0]->type == AST_RANGE)
 	{
 		if (children[0]->integer < (unsigned)children[0]->id2ast->unpacked_dimensions)
-			input_error("Insufficient number of array indices for %s.\n", log_id(str));
+			input_error("Insufficient number of array indices for %s.\n", RTLIL::unescape_id(str));
 
 		std::stringstream sstr;
 		sstr << "$memwr$" << children[0]->str << "$" << RTLIL::encode_filename(*location.begin.filename) << ":" << location.begin.line << "$" << (autoidx++);
@@ -5273,7 +5273,7 @@ void AstNode::mem2reg_as_needed_pass1(dict<AstNode*, pool<std::string>> &mem2reg
 		AstNode *mem = id2ast;
 
 		if (integer < (unsigned)mem->unpacked_dimensions)
-			input_error("Insufficient number of array indices for %s.\n", log_id(str));
+			input_error("Insufficient number of array indices for %s.\n", RTLIL::unescape_id(str));
 
 		// flag if used after blocking assignment (in same proc)
 		if ((proc_flags[mem] & AstNode::MEM2REG_FL_EQ1) && !(mem2reg_candidates[mem] & AstNode::MEM2REG_FL_EQ2)) {