diff --git a/src/osx/btop_collect.cpp b/src/osx/btop_collect.cpp
index dbe7f3e..12ce949 100644
--- a/src/osx/btop_collect.cpp
+++ b/src/osx/btop_collect.cpp
@@ -225,11 +225,13 @@ namespace Cpu {
 	bool get_sensors() {
 		Logger::debug("get_sensors");
 		got_sensors = false;
-		ThermalSensors sensors;
-		if (sensors.getSensors().size() > 0) {
-			got_sensors = true;
+		if (Config::getB("show_coretemp") and Config::getB("check_temp")) {
+			ThermalSensors sensors;
+			if (sensors.getSensors().size() > 0) {
+				got_sensors = true;
+			}
+			Logger::debug("got sensors:" + std::to_string(got_sensors));
 		}
-		Logger::debug("got sensors:" + std::to_string(got_sensors));
 		return got_sensors;
 	}
 
diff --git a/src/osx/sensors.cpp b/src/osx/sensors.cpp
index 8252238..8451bd1 100644
--- a/src/osx/sensors.cpp
+++ b/src/osx/sensors.cpp
@@ -7,6 +7,8 @@
 #include <map>
 #include <string>
 
+#include <btop_tools.hpp>
+
 extern "C" {
 typedef struct __IOHIDEvent *IOHIDEventRef;
 typedef struct __IOHIDServiceClient *IOHIDServiceClientRef;
@@ -60,6 +62,7 @@ CFArrayRef getProductNames(CFDictionaryRef sensors) {
 		}
 		CFRelease(name);
 	}
+	CFRelease(system);
 	return array;
 }