diff --git a/src/modules/uORB/uORBManager.cpp b/src/modules/uORB/uORBManager.cpp
index a6d2a2a8e3..63cecba4a6 100644
--- a/src/modules/uORB/uORBManager.cpp
+++ b/src/modules/uORB/uORBManager.cpp
@@ -137,7 +137,7 @@ int uORB::Manager::orb_exists(const struct orb_metadata *meta, int instance)
 #else
 	ret = px4_access(path, F_OK);
 
-	if (ret == -1 && meta != nullptr && _remote_topics.size() > 0) {
+	if (ret == -1 && meta != nullptr && !_remote_topics.empty()) {
 		ret = (_remote_topics.find(meta->o_name) != _remote_topics.end()) ? OK : ERROR;
 	}
 
diff --git a/src/platforms/posix/main.cpp b/src/platforms/posix/main.cpp
index a18a6bc7e6..cce995afd9 100644
--- a/src/platforms/posix/main.cpp
+++ b/src/platforms/posix/main.cpp
@@ -226,7 +226,7 @@ static void run_cmd(const vector<string> &appargs, bool exit_on_fail, bool silen
 			}
 		}
 
-	} else if (command.compare("help") == 0) {
+	} else if (command == "help") {
 		list_builtins(apps);
 
 	} else if (command.length() == 0 || command[0] == '#') {
@@ -387,7 +387,7 @@ int main(int argc, char **argv)
 
 	cout << "commands file: " << commands_file << endl;
 
-	if (commands_file.size() < 1) {
+	if (commands_file.empty()) {
 		PX4_ERR("Error commands file not specified");
 		return -1;
 	}
@@ -452,7 +452,7 @@ int main(int argc, char **argv)
 	px4::init(argc, argv, "px4");
 
 	// if commandfile is present, process the commands from the file
-	if (commands_file.size() != 0) {
+	if (!commands_file.empty()) {
 		ifstream infile(commands_file.c_str());
 
 		if (infile.is_open()) {