diff --git a/src/inspector_socket.cc b/src/inspector_socket.cc
index a95f768e16553a..2e9a0a1fc2c07a 100644
--- a/src/inspector_socket.cc
+++ b/src/inspector_socket.cc
@@ -158,10 +158,10 @@ static void generate_accept_string(const std::string& client_key,
 }
 
 static std::string TrimPort(const std::string& host) {
-  size_t last_colon_pos = host.rfind(":");
+  size_t last_colon_pos = host.rfind(':');
   if (last_colon_pos == std::string::npos)
     return host;
-  size_t bracket = host.rfind("]");
+  size_t bracket = host.rfind(']');
   if (bracket == std::string::npos || last_colon_pos > bracket)
     return host.substr(0, last_colon_pos);
   return host;
diff --git a/src/node_report.cc b/src/node_report.cc
index 00d6a2454c6533..f9cf9211434bfc 100644
--- a/src/node_report.cc
+++ b/src/node_report.cc
@@ -507,7 +507,7 @@ static void PrintSystemInformation(JSONWriter* writer) {
       WideCharToMultiByte(
           CP_UTF8, 0, lpszVariable, -1, str, size, nullptr, nullptr);
       std::string env(str);
-      int sep = env.rfind("=");
+      int sep = env.rfind('=');
       std::string key = env.substr(0, sep);
       std::string value = env.substr(sep + 1);
       writer->json_keyvalue(key, value);