diff --git a/unittest/internal/osal/IntTestMutex.cpp b/unittest/internal/osal/IntTestMutex.cpp
index 3fd668dfd..2899535aa 100644
--- a/unittest/internal/osal/IntTestMutex.cpp
+++ b/unittest/internal/osal/IntTestMutex.cpp
@@ -1,7 +1,7 @@
 #include "IntTestMutex.h"
 
 #include <fsfw/ipc/MutexFactory.h>
-#include <unittest/internal/UnittDefinitions.h>
+#include "../UnittDefinitions.h"
 
 #if defined(hosted)
 #include <fsfw/osal/hosted/Mutex.h>
diff --git a/unittest/internal/osal/IntTestSemaphore.cpp b/unittest/internal/osal/IntTestSemaphore.cpp
index 534a6a6d5..130fc8aea 100644
--- a/unittest/internal/osal/IntTestSemaphore.cpp
+++ b/unittest/internal/osal/IntTestSemaphore.cpp
@@ -1,6 +1,6 @@
 #include "IntTestSemaphore.h"
 #include <fsfw/tasks/SemaphoreFactory.h>
-#include <unittest/internal/UnittDefinitions.h>
+#include "../UnittDefinitions.h"
 #include <fsfw/serviceinterface/ServiceInterfaceStream.h>
 #include <fsfw/timemanager/Stopwatch.h>
 
diff --git a/unittest/internal/serialize/IntTestSerialization.cpp b/unittest/internal/serialize/IntTestSerialization.cpp
index 3f231a417..031fd6fe2 100644
--- a/unittest/internal/serialize/IntTestSerialization.cpp
+++ b/unittest/internal/serialize/IntTestSerialization.cpp
@@ -1,7 +1,7 @@
 #include "IntTestSerialization.h"
 #include <fsfw/serialize/SerializeElement.h>
 #include <fsfw/serialize/SerialBufferAdapter.h>
-#include <unittest/internal/UnittDefinitions.h>
+#include "../UnittDefinitions.h"
 #include <fsfw/serialize/SerializeIF.h>
 #include <array>