diff --git a/tools/power-utils/utils.cpp b/tools/power-utils/utils.cpp
index e70004d..9517680 100644
--- a/tools/power-utils/utils.cpp
+++ b/tools/power-utils/utils.cpp
@@ -176,6 +176,10 @@
 
 std::string getDeviceName(std::string devPath)
 {
+    if (devPath.empty())
+    {
+        return devPath;
+    }
     if (devPath.back() == '/')
     {
         devPath.pop_back();