diff --git a/app/src/main/cpp/PhoneDevice.cpp b/app/src/main/cpp/PhoneDevice.cpp
index b160d412..b231533b 100644
--- a/app/src/main/cpp/PhoneDevice.cpp
+++ b/app/src/main/cpp/PhoneDevice.cpp
@@ -19,7 +19,7 @@
 #include <android/log.h>
 #include <android/thermal.h>
 #include <sys/system_properties.h>
-#include <Mat.h>
+#include <mat.h>
 
 #include <filesystem>
 namespace fs = std::filesystem;