diff --git a/src/modules/systemlib/flashparams/flashfs.h b/src/modules/systemlib/flashparams/flashfs.h
index d7c5df3c2d..9cbb060f59 100644
--- a/src/modules/systemlib/flashparams/flashfs.h
+++ b/src/modules/systemlib/flashparams/flashfs.h
@@ -99,7 +99,7 @@ __EXPORT extern const flash_file_token_t parameters_token;
  */
 typedef struct sector_descriptor_t {
 	uint8_t       page;
-	uint16_t      size;
+	uint32_t      size;
 	uint32_t      address;
 } sector_descriptor_t;