diff --git a/VolumeManager.cpp b/VolumeManager.cpp
index 70f71f9..6bed2bf 100644
--- a/VolumeManager.cpp
+++ b/VolumeManager.cpp
@@ -189,8 +189,8 @@
 
     if (devType != "disk") return;
 
-    int major = atoi(evt->findParam("MAJOR"));
-    int minor = atoi(evt->findParam("MINOR"));
+    int major = std::stoi(evt->findParam("MAJOR"));
+    int minor = std::stoi(evt->findParam("MINOR"));
     dev_t device = makedev(major, minor);
 
     switch (evt->getAction()) {