diff --git a/include/libcamera/base/semaphore.h b/include/libcamera/base/semaphore.h
index ec05fad3a..c11e8dd10 100644
--- a/include/libcamera/base/semaphore.h
+++ b/include/libcamera/base/semaphore.h
@@ -8,7 +8,8 @@
 #pragma once
 
 #include <libcamera/base/private.h>
-#include <libcamera/base/thread.h>
+
+#include <libcamera/base/mutex.h>
 
 namespace libcamera {
 
diff --git a/include/libcamera/base/thread.h b/include/libcamera/base/thread.h
index 44678c348..9d00f1029 100644
--- a/include/libcamera/base/thread.h
+++ b/include/libcamera/base/thread.h
@@ -14,7 +14,6 @@
 #include <libcamera/base/private.h>
 
 #include <libcamera/base/message.h>
-#include <libcamera/base/mutex.h>
 #include <libcamera/base/signal.h>
 #include <libcamera/base/utils.h>
 
diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp
index ad4bf07c3..c7686557e 100644
--- a/src/android/camera_device.cpp
+++ b/src/android/camera_device.cpp
@@ -14,7 +14,6 @@
 #include <vector>
 
 #include <libcamera/base/log.h>
-#include <libcamera/base/thread.h>
 #include <libcamera/base/utils.h>
 
 #include <libcamera/control_ids.h>
diff --git a/src/android/camera_device.h b/src/android/camera_device.h
index bda0b376d..a945f5de6 100644
--- a/src/android/camera_device.h
+++ b/src/android/camera_device.h
@@ -17,7 +17,7 @@
 #include <libcamera/base/class.h>
 #include <libcamera/base/log.h>
 #include <libcamera/base/message.h>
-#include <libcamera/base/thread.h>
+#include <libcamera/base/mutex.h>
 
 #include <libcamera/camera.h>
 #include <libcamera/framebuffer.h>
diff --git a/src/android/camera_hal_manager.h b/src/android/camera_hal_manager.h
index cc310f90e..765701b20 100644
--- a/src/android/camera_hal_manager.h
+++ b/src/android/camera_hal_manager.h
@@ -17,7 +17,7 @@
 #include <system/camera_metadata.h>
 
 #include <libcamera/base/class.h>
-#include <libcamera/base/thread.h>
+#include <libcamera/base/mutex.h>
 
 #include <libcamera/camera_manager.h>
 
diff --git a/src/android/camera_request.h b/src/android/camera_request.h
index 88d501a89..887dbe869 100644
--- a/src/android/camera_request.h
+++ b/src/android/camera_request.h
@@ -12,7 +12,7 @@
 #include <vector>
 
 #include <libcamera/base/class.h>
-#include <libcamera/base/thread.h>
+#include <libcamera/base/mutex.h>
 
 #include <libcamera/camera.h>
 #include <libcamera/framebuffer.h>
diff --git a/src/android/camera_stream.h b/src/android/camera_stream.h
index adb5a37d0..e4eb953ac 100644
--- a/src/android/camera_stream.h
+++ b/src/android/camera_stream.h
@@ -13,6 +13,7 @@
 
 #include <hardware/camera3.h>
 
+#include <libcamera/base/mutex.h>
 #include <libcamera/base/thread.h>
 
 #include <libcamera/camera.h>
diff --git a/src/libcamera/base/semaphore.cpp b/src/libcamera/base/semaphore.cpp
index bf730c872..4fe30293a 100644
--- a/src/libcamera/base/semaphore.cpp
+++ b/src/libcamera/base/semaphore.cpp
@@ -6,7 +6,6 @@
  */
 
 #include <libcamera/base/semaphore.h>
-#include <libcamera/base/thread.h>
 
 /**
  * \file base/semaphore.h
diff --git a/src/libcamera/base/signal.cpp b/src/libcamera/base/signal.cpp
index 9c2319c59..9df45d079 100644
--- a/src/libcamera/base/signal.cpp
+++ b/src/libcamera/base/signal.cpp
@@ -7,7 +7,7 @@
 
 #include <libcamera/base/signal.h>
 
-#include <libcamera/base/thread.h>
+#include <libcamera/base/mutex.h>
 
 /**
  * \file base/signal.h
diff --git a/src/libcamera/base/thread.cpp b/src/libcamera/base/thread.cpp
index b2043b7e2..6bda9d146 100644
--- a/src/libcamera/base/thread.cpp
+++ b/src/libcamera/base/thread.cpp
@@ -17,6 +17,7 @@
 #include <libcamera/base/event_dispatcher_poll.h>
 #include <libcamera/base/log.h>
 #include <libcamera/base/message.h>
+#include <libcamera/base/mutex.h>
 
 /**
  * \page thread Thread Support
diff --git a/src/libcamera/camera_manager.cpp b/src/libcamera/camera_manager.cpp
index 77ff3bd1a..70d738221 100644
--- a/src/libcamera/camera_manager.cpp
+++ b/src/libcamera/camera_manager.cpp
@@ -12,6 +12,7 @@
 #include <libcamera/camera.h>
 
 #include <libcamera/base/log.h>
+#include <libcamera/base/mutex.h>
 #include <libcamera/base/thread.h>
 #include <libcamera/base/utils.h>
 
diff --git a/src/v4l2/v4l2_camera.h b/src/v4l2/v4l2_camera.h
index bf1b6de4c..9307d61dd 100644
--- a/src/v4l2/v4l2_camera.h
+++ b/src/v4l2/v4l2_camera.h
@@ -10,8 +10,8 @@
 #include <deque>
 #include <utility>
 
+#include <libcamera/base/mutex.h>
 #include <libcamera/base/semaphore.h>
-#include <libcamera/base/thread.h>
 
 #include <libcamera/camera.h>
 #include <libcamera/file_descriptor.h>
diff --git a/src/v4l2/v4l2_compat.cpp b/src/v4l2/v4l2_compat.cpp
index fd73381d3..1765fb5db 100644
--- a/src/v4l2/v4l2_compat.cpp
+++ b/src/v4l2/v4l2_compat.cpp
@@ -14,6 +14,8 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 
+#include <libcamera/base/utils.h>
+
 #define LIBCAMERA_PUBLIC __attribute__((visibility("default")))
 
 using namespace libcamera;