diff --git a/src/test-fallback-surface.c b/src/test-fallback-surface.c
index 21ee19077..1994f51f1 100644
--- a/src/test-fallback-surface.c
+++ b/src/test-fallback-surface.c
@@ -54,6 +54,7 @@
 #include "test-fallback-surface.h"
 
 #include "cairoint.h"
+#include "cairo-mutex-private.h"
 
 typedef struct _test_fallback_surface {
     cairo_surface_t base;
diff --git a/src/test-meta-surface.c b/src/test-meta-surface.c
index 6c5877971..a21e7b230 100644
--- a/src/test-meta-surface.c
+++ b/src/test-meta-surface.c
@@ -48,6 +48,8 @@
 #include "test-meta-surface.h"
 
 #include "cairoint.h"
+#include "cairo-mutex-private.h"
+
 #include "cairo-meta-surface-private.h"
 
 typedef struct _test_meta_surface {
diff --git a/src/test-paginated-surface.c b/src/test-paginated-surface.c
index d82749f69..6a69187db 100644
--- a/src/test-paginated-surface.c
+++ b/src/test-paginated-surface.c
@@ -48,6 +48,7 @@
 #include "test-paginated-surface.h"
 
 #include "cairoint.h"
+#include "cairo-mutex-private.h"
 
 #include "cairo-paginated-surface-private.h"