diff --git a/dm-compress/compress.c b/dm-compress/compress.c
index d98b9ee..092d573 100644
--- a/dm-compress/compress.c
+++ b/dm-compress/compress.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/pagemap.h>
 #include <linux/bio.h>
 #include <linux/device-mapper.h>
 #include <linux/kthread.h>
diff --git a/dm-compress/lbatpblk.c b/dm-compress/lbatpblk.c
index 620060a..42764e5 100644
--- a/dm-compress/lbatpblk.c
+++ b/dm-compress/lbatpblk.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/pagemap.h>
 #include <linux/bio.h>
 #include <linux/device-mapper.h>
 #include <linux/workqueue.h>
diff --git a/dm-compress/lbd.c b/dm-compress/lbd.c
index c907494..d4a6539 100644
--- a/dm-compress/lbd.c
+++ b/dm-compress/lbd.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/pagemap.h>
 #include <linux/bio.h>
 #include <linux/device-mapper.h>
 #include <linux/workqueue.h>
diff --git a/dm-compress/pbat.c b/dm-compress/pbat.c
index 7d9988d..fad186d 100644
--- a/dm-compress/pbat.c
+++ b/dm-compress/pbat.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/pagemap.h>
 #include <linux/bio.h>
 #include <linux/device-mapper.h>
 #include <linux/workqueue.h>
diff --git a/dm-compress/util.c b/dm-compress/util.c
index 402d887..9c671b5 100644
--- a/dm-compress/util.c
+++ b/dm-compress/util.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/pagemap.h>
 #include <linux/bio.h>
 #include <linux/device-mapper.h>
 #include <linux/workqueue.h>