diff --git a/README.md b/README.md
index 3ef631935..66f51b6b3 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ zypper install -y --type pattern devel_basis
 zypper install -y git rsync wget cmake doxygen graphviz clang-tools cppcheck boost-devel libboost_filesystem-devel libboost_log-devel libboost_program_options-devel libboost_system-devel libboost_thread-devel java-17-openjdk java-17-openjdk-devel nodejs nodejs-devel npm python3-pip gcc-c++ libopenssl-devel sqlite3-devel libpcap-devel libevent-devel libcap-devel
 ```
 
-#### Fedora 37, 38 & 39
+#### Fedora 38, 39 & 40
 ```bash
 sudo dnf update
 sudo dnf install make automake gcc gcc-c++ kernel-devel python3-pip python3-devel git rsync wget cmake doxygen graphviz clang-tools-extra cppcheck java-17-openjdk java-17-openjdk-devel boost-devel nodejs nodejs-devel npm openssl openssl-devel libsqlite3x-devel curl rfkill libpcap-devel libevent-devel libcap-devel
diff --git a/modules/API/API.cpp b/modules/API/API.cpp
index 19d94c32e..2c1a7fea9 100644
--- a/modules/API/API.cpp
+++ b/modules/API/API.cpp
@@ -540,7 +540,9 @@ void API::init() {
             while (this->running) {
                 json connectors_array = connectors;
                 this->mqtt.publish(var_connectors, connectors_array.dump());
-                this->mqtt.publish(var_info, this->charger_information.dump());
+                if (not this->charger_information.is_null()) {
+                    this->mqtt.publish(var_info, this->charger_information.dump());
+                }
                 {
                     std::scoped_lock lock(ocpp_data_mutex);
                     this->mqtt.publish(var_ocpp_connection_status, this->ocpp_connection_status);