diff --git a/src/ExitAirTempSensor.cpp b/src/ExitAirTempSensor.cpp
index 61a03fb..e256bb1 100644
--- a/src/ExitAirTempSensor.cpp
+++ b/src/ExitAirTempSensor.cpp
@@ -595,7 +595,7 @@
         }
         for (const auto& item : subtree)
         {
-            size_t lastSlash = item.first.rfind("/");
+            size_t lastSlash = item.first.rfind('/');
             if (lastSlash == std::string::npos ||
                 lastSlash == item.first.size() || item.second.empty())
             {
diff --git a/src/PSUSensorMain.cpp b/src/PSUSensorMain.cpp
index a0f74ba..d66537b 100644
--- a/src/PSUSensorMain.cpp
+++ b/src/PSUSensorMain.cpp
@@ -288,9 +288,17 @@
             continue;
         }
 
+        std::string name = "Pwm_";
+        name += psuName;
+        name += "_";
+        name += pwmName.second;
+
+        std::string objPath = interfacePath;
+        objPath += "_";
+        objPath += pwmName.second;
+
         pwmSensors[psuName + labelHead] = std::make_unique<PwmSensor>(
-            "Pwm_" + psuName + "_" + pwmName.second, pwmPathStr, dbusConnection,
-            objectServer, interfacePath + "_" + pwmName.second, "PSU");
+            name, pwmPathStr, dbusConnection, objectServer, objPath, "PSU");
     }
 }