diff --git a/cpp/src/metrics/SystemInfo.cpp b/cpp/src/metrics/SystemInfo.cpp
index 61ae42c438b35598b77b9ffff1ad82a3f39b996a..5db2448ee92387995ccb8eec0f38ec738678d971 100644
--- a/cpp/src/metrics/SystemInfo.cpp
+++ b/cpp/src/metrics/SystemInfo.cpp
@@ -245,6 +245,7 @@ SystemInfo::CPUTemperature(){
         float temp;
         fscanf(file, "%f", &temp);
         result.push_back(temp / 1000);
+        fclose(file);
     }
 
 }