diff --git a/storage/rocksdb/ha_rocksdb.cc b/storage/rocksdb/ha_rocksdb.cc
index b6818234fad..2a8d5f8513c 100644
--- a/storage/rocksdb/ha_rocksdb.cc
+++ b/storage/rocksdb/ha_rocksdb.cc
@@ -20,6 +20,9 @@
 
 #define MYSQL_SERVER 1
 
+/* For use of 'PRIu64': */
+#define __STDC_FORMAT_MACROS
+
 #include <my_config.h>
 
 #include <inttypes.h>
diff --git a/storage/rocksdb/rdb_cf_manager.cc b/storage/rocksdb/rdb_cf_manager.cc
index 710365a0b25..22f60ef3e61 100644
--- a/storage/rocksdb/rdb_cf_manager.cc
+++ b/storage/rocksdb/rdb_cf_manager.cc
@@ -18,6 +18,9 @@
 #pragma implementation // gcc: Class implementation
 #endif
 
+/* For use of 'PRIu64': */
+#define __STDC_FORMAT_MACROS
+
 #include <my_config.h>
 
 #include <inttypes.h>
diff --git a/storage/rocksdb/rdb_datadic.cc b/storage/rocksdb/rdb_datadic.cc
index 79229561939..ba13b52f1b4 100644
--- a/storage/rocksdb/rdb_datadic.cc
+++ b/storage/rocksdb/rdb_datadic.cc
@@ -18,6 +18,9 @@
 #pragma implementation // gcc: Class implementation
 #endif
 
+/* For use of 'PRIu64': */
+#define __STDC_FORMAT_MACROS
+
 #include <my_config.h>
 /* This C++ file's header file */
 #include "./rdb_datadic.h"