diff --git a/interfaces/innerkits/fs_manager/libfs_dm/fs_dm_linear.c b/interfaces/innerkits/fs_manager/libfs_dm/fs_dm_linear.c
index c98a99a944960b4d106724cea54f15a13714dfbc..ef32ff23667547faef08ab8cde1f822387a3e621 100644
--- a/interfaces/innerkits/fs_manager/libfs_dm/fs_dm_linear.c
+++ b/interfaces/innerkits/fs_manager/libfs_dm/fs_dm_linear.c
@@ -30,8 +30,6 @@ extern "C" {
 #endif
 #endif
 
-#define MAX_TARGET_NUM 4096
-
 static int LoadDmLinearDeviceTable(int fd, const char *devName, DmLinearTarget *target, uint32_t targetNum)
 {
     struct dm_ioctl *io = NULL;
diff --git a/interfaces/innerkits/fs_manager/libfs_dm/include/fs_dm_linear.h b/interfaces/innerkits/fs_manager/libfs_dm/include/fs_dm_linear.h
index 51bba8fad2bf6198d4eaff13f59a44bcc4c00095..d72ff1ebbc9fb0a8e31d969106e0b0d21f6411a5 100644
--- a/interfaces/innerkits/fs_manager/libfs_dm/include/fs_dm_linear.h
+++ b/interfaces/innerkits/fs_manager/libfs_dm/include/fs_dm_linear.h
@@ -24,6 +24,7 @@ extern "C" {
 #endif
 #endif
 
+#define MAX_TARGET_NUM 4096
 typedef DmVerityTarget DmLinearTarget;
 int FsDmCreateMultiTargetLinearDevice(const char *devName, char *dmDevPath, uint64_t dmDevPathLen,
     DmLinearTarget *target, uint32_t targetNum);