diff --git a/sleepyhead/oximetry.cpp b/sleepyhead/oximetry.cpp
index fd2d5371..a47e4df5 100644
--- a/sleepyhead/oximetry.cpp
+++ b/sleepyhead/oximetry.cpp
@@ -13,7 +13,7 @@
 #ifdef USE_BUNDLED_LIBS
 #include "src/qextserialenumerator.h"
 #else
-#include <qextserialenumerator.h>
+#include <QtExtSerialPort/qextserialenumerator.h>
 #endif
 
 #include "oximetry.h"
diff --git a/sleepyhead/oximetry.h b/sleepyhead/oximetry.h
index 18914380..22a2a9d0 100644
--- a/sleepyhead/oximetry.h
+++ b/sleepyhead/oximetry.h
@@ -17,7 +17,7 @@
 #ifdef USE_BUNDLED_LIBS
 #include "src/qextserialport.h"
 #else
-#include <qextserialport.h>
+#include <QtExtSerialPort/qextserialport.h>
 #endif
 
 #include "SleepLib/profiles.h"