diff --git a/README.md b/README.md
index c8f9c80..ebe1a5d 100644
--- a/README.md
+++ b/README.md
@@ -26,9 +26,9 @@ Open CAS uses Safe string library (safeclib) that is MIT licensed.
 To download latest Open CAS Linux release run following commands:
 
 ```
-wget https://github.com/Open-CAS/open-cas-linux/releases/download/v21.6.1/open-cas-linux-21.06.1.0547.release.tar.gz
-tar -xf open-cas-linux-21.06.1.0547.release.tar.gz
-cd open-cas-linux-21.06.1.0547.release/
+wget https://github.com/Open-CAS/open-cas-linux/releases/download/v21.6.5/open-cas-linux-21.06.5.0555.release.tar.gz
+tar -xf open-cas-linux-21.06.5.0555.release.tar.gz
+cd open-cas-linux-21.06.5.0555.release/
 ```
 
 Alternatively, if you want recent development (unstable) version, you can clone GitHub repository:
@@ -101,9 +101,9 @@ Before running tests make sure you have a platform with at least 2 disks (one fo
 
 1. Go to test directory `cd test/functional`.
 1. Install dependencies with command `pip3 install -r test-framework/requirements.txt`.
-1. Create DUT config. See example [here](test/functional/config/example_dut_config.yml).  
-    a) Set disks params. You need at least two disks, of which at least one is an SSD drive.  
-    b) For remote execution uncomment and set the `ip`, `user` and `password` fields.  
+1. Create DUT config. See example [here](test/functional/config/example_dut_config.yml).
+    a) Set disks params. You need at least two disks, of which at least one is an SSD drive.
+    b) For remote execution uncomment and set the `ip`, `user` and `password` fields.
     c) For local execution just leave these fields commented.
 1. Run tests using command `pytest-3 --dut-config=<CONFIG>` where `<CONFIG>` is path to your config file, for example `pytest-3 --dut-config="config/dut_config.yml"`.
 
diff --git a/casadm/cas_lib.c b/casadm/cas_lib.c
index 63b477e..943a954 100644
--- a/casadm/cas_lib.c
+++ b/casadm/cas_lib.c
@@ -2751,7 +2751,7 @@ int list_caches(unsigned int list_format, bool by_id_path)
 		char status_buf[CACHE_STATE_LENGHT];
 		const char *tmp_status;
 		char mode_string[12];
-		char cache_ctrl_dev[MAX_STR_LEN];
+		char cache_ctrl_dev[MAX_STR_LEN] = "-";
 		float cache_flush_prog;
 		float core_flush_prog;
 
@@ -2778,13 +2778,10 @@ int list_caches(unsigned int list_format, bool by_id_path)
 				if (!curr_cache->standby_detached) {
 					snprintf(cache_ctrl_dev, sizeof(cache_ctrl_dev),
 							"/dev/cas-cache-%d", curr_cache->id);
-				} else {
-					strncpy(cache_ctrl_dev, "-", sizeof(cache_ctrl_dev));
 				}
 			} else {
 				snprintf(mode_string, sizeof(mode_string), "%s",
 						cache_mode_to_name(curr_cache->mode));
-				strncpy(cache_ctrl_dev, "-", sizeof(cache_ctrl_dev));
 			}
 		}