diff --git a/passes/cmds/logger.cc b/passes/cmds/logger.cc
index cab4ab81c..1e3f5e821 100644
--- a/passes/cmds/logger.cc
+++ b/passes/cmds/logger.cc
@@ -106,7 +106,6 @@ struct LoggerPass : public Pass {
 			}
 			if (args[argidx] == "-warn" && argidx+1 < args.size()) {
 				std::string pattern = args[++argidx];
-				if (pattern.front() == '\"' && pattern.back() == '\"') pattern = pattern.substr(1, pattern.size() - 2);		
 				try {
 					log("Added regex '%s' for warnings to warn list.\n", pattern);
 					log_warn_regexes.push_back(YS_REGEX_COMPILE(pattern));
@@ -118,7 +117,6 @@ struct LoggerPass : public Pass {
 			}
 			if (args[argidx] == "-nowarn" && argidx+1 < args.size()) {
 				std::string pattern = args[++argidx];
-				if (pattern.front() == '\"' && pattern.back() == '\"') pattern = pattern.substr(1, pattern.size() - 2);	
 				try {
 					log("Added regex '%s' for warnings to nowarn list.\n", pattern);
 					log_nowarn_regexes.push_back(YS_REGEX_COMPILE(pattern));
@@ -130,7 +128,6 @@ struct LoggerPass : public Pass {
 			}
 			if (args[argidx] == "-werror" && argidx+1 < args.size()) {
 				std::string pattern = args[++argidx];
-				if (pattern.front() == '\"' && pattern.back() == '\"') pattern = pattern.substr(1, pattern.size() - 2);	
 				try {
 					log("Added regex '%s' for warnings to werror list.\n", pattern);
 					log_werror_regexes.push_back(YS_REGEX_COMPILE(pattern));
@@ -164,7 +161,6 @@ struct LoggerPass : public Pass {
 				if ((type=="error" || type=="prefix-error") && log_expect_error.size()>0)
 					log_cmd_error("Only single error message can be expected !\n");
 				std::string pattern = args[++argidx];
-				if (pattern.front() == '\"' && pattern.back() == '\"') pattern = pattern.substr(1, pattern.size() - 2);
 				int count = atoi(args[++argidx].c_str());
 				if (count<=0)
 					log_cmd_error("Number of expected messages must be higher then 0 !\n");