diff --git a/scst/README b/scst/README
index b0439de4b..5e6c45a59 100644
--- a/scst/README
+++ b/scst/README
@@ -333,7 +333,7 @@ Module scst supports the following parameters:
  - scst_threads - allows to set count of SCST's threads. By default it
    is CPU count.
 
- - scst_max_cmd_mem - sets maximum amount of memory in Mb allowed to be
+ - scst_max_cmd_mem - sets maximum amount of memory in MB allowed to be
    consumed by the SCST commands for data buffers at any given time. By
    default it is approximately TotalMem/4.
 
diff --git a/scst/README_in-tree b/scst/README_in-tree
index 15ff849ff..8742d29ac 100644
--- a/scst/README_in-tree
+++ b/scst/README_in-tree
@@ -258,7 +258,7 @@ Module scst supports the following parameters:
  - scst_threads - allows to set count of SCST's threads. By default it
    is CPU count.
 
- - scst_max_cmd_mem - sets maximum amount of memory in Mb allowed to be
+ - scst_max_cmd_mem - sets maximum amount of memory in MB allowed to be
    consumed by the SCST commands for data buffers at any given time. By
    default it is approximately TotalMem/4.
 
diff --git a/usr/fileio/fileio.c b/usr/fileio/fileio.c
index 7fd398bcc..ad5535bee 100644
--- a/usr/fileio/fileio.c
+++ b/usr/fileio/fileio.c
@@ -345,7 +345,7 @@ int start(int argc, char **argv)
 		close(fd);
 
 		PRINT_INFO("%s", " ");
-		PRINT_INFO("Virtual device \"%s\", path \"%s\", size %"PRId64"Mb, "
+		PRINT_INFO("Virtual device \"%s\", path \"%s\", size %"PRId64"MB, "
 			"block size %d, nblocks %"PRId64", options:", devs[i].name,
 			devs[i].file_name, (uint64_t)devs[i].file_size/1024/1024,
 			devs[i].block_size, (uint64_t)devs[i].nblocks);