diff --git a/drivers/mtd/at25.c b/drivers/mtd/at25.c
index 76507fae43..bb37e778c9 100644
--- a/drivers/mtd/at25.c
+++ b/drivers/mtd/at25.c
@@ -42,6 +42,7 @@
 #include <nuttx/config.h>
 
 #include <sys/types.h>
+#include <inttypes.h>
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdlib.h>
@@ -620,7 +621,8 @@ static int at25_ioctl(FAR struct mtd_dev_s *dev, int cmd, unsigned long arg)
               geo->neraseblocks = priv->nsectors;
               ret               = OK;
 
-              finfo("blocksize: %d erasesize: %d neraseblocks: %d\n",
+              finfo("blocksize: %" PRId32 " erasesize: %" PRId32
+                    " neraseblocks: %" PRId32 "\n",
                     geo->blocksize, geo->erasesize, geo->neraseblocks);
             }
         }