diff --git a/src/CPUSensorMain.cpp b/src/CPUSensorMain.cpp
index 32039e9..def889b 100644
--- a/src/CPUSensorMain.cpp
+++ b/src/CPUSensorMain.cpp
@@ -60,7 +60,7 @@
 
 static constexpr const char* DT_OVERLAY = "/usr/bin/dtoverlay";
 static constexpr const char* OVERLAY_DIR = "/tmp/overlays";
-static constexpr const char* PECI_DEV = "/dev/peci0";
+static constexpr const char* PECI_DEV = "/dev/peci-0";
 static constexpr const unsigned int RANK_NUM_MAX = 8;
 
 namespace fs = std::experimental::filesystem;