diff --git a/package/system/fstools/Makefile b/package/system/fstools/Makefile
index 3aa250f7d4..4bc59150da 100644
--- a/package/system/fstools/Makefile
+++ b/package/system/fstools/Makefile
@@ -79,14 +79,14 @@ define Package/block-mount
   SECTION:=base
   CATEGORY:=Base system
   TITLE:=Block device mounting and checking
-  DEPENDS:=+ubox +libubox +libuci
+  DEPENDS:=+ubox +libubox +libuci +libblobmsg-json +libjson-c
 endef
 
 define Package/blockd
   SECTION:=base
   CATEGORY:=Base system
   TITLE:=Block device automounting
-  DEPENDS:=+block-mount +fstools +libubus +kmod-fs-autofs4
+  DEPENDS:=+block-mount +fstools +libubus +kmod-fs-autofs4 +libblobmsg-json +libjson-c
 endef
 
 define Package/fstools/install