diff --git a/lib/json/json_internal.h b/include/spdk_internal/utf.h
similarity index 98%
rename from lib/json/json_internal.h
rename to include/spdk_internal/utf.h
index 01f700570e..9f5a680cce 100644
--- a/lib/json/json_internal.h
+++ b/include/spdk_internal/utf.h
@@ -31,8 +31,8 @@
  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef SPDK_JSON_INTERNAL_H_
-#define SPDK_JSON_INTERNAL_H_
+#ifndef SPDK_UTF_H_
+#define SPDK_UTF_H_
 
 #include "spdk/stdinc.h"
 
@@ -41,8 +41,6 @@
 #include "spdk/likely.h"
 #include "spdk/string.h"
 
-#define SPDK_JSON_MAX_NESTING_DEPTH	64
-
 static inline bool
 utf8_tail(uint8_t c)
 {
diff --git a/lib/json/json_parse.c b/lib/json/json_parse.c
index efabcb1f03..ed8e4a3689 100644
--- a/lib/json/json_parse.c
+++ b/lib/json/json_parse.c
@@ -31,7 +31,9 @@
  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "json_internal.h"
+#include "spdk_internal/utf.h"
+
+#define SPDK_JSON_MAX_NESTING_DEPTH	64
 
 static int
 hex_value(uint8_t c)
diff --git a/lib/json/json_util.c b/lib/json/json_util.c
index d25c097f5e..4a9b5b405f 100644
--- a/lib/json/json_util.c
+++ b/lib/json/json_util.c
@@ -31,7 +31,7 @@
  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "json_internal.h"
+#include "spdk_internal/utf.h"
 
 size_t
 spdk_json_val_len(const struct spdk_json_val *val)
diff --git a/lib/json/json_write.c b/lib/json/json_write.c
index 6c55850ae0..155463b778 100644
--- a/lib/json/json_write.c
+++ b/lib/json/json_write.c
@@ -31,7 +31,7 @@
  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "json_internal.h"
+#include "spdk_internal/utf.h"
 
 struct spdk_json_write_ctx {
 	spdk_json_write_cb write_cb;