diff --git a/dev/n_obackup.sh b/dev/n_obackup.sh
index e699715..9e63b4d 100755
--- a/dev/n_obackup.sh
+++ b/dev/n_obackup.sh
@@ -634,7 +634,7 @@ function GetDiskSpaceLocal {
         if [ -d "$path_to_check" ]; then
 		# Not elegant solution to make df silent on errors
 		# No sudo on local commands, assuming you should have all the necesarry rights to check backup directories sizes
-		df "$path_to_check" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
+		$DF_CMD "$path_to_check" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
         	if [ $? != 0 ]; then
         		DISK_SPACE=0
 			Logger "Cannot get disk space in [$path_to_check] on local system." "ERROR"
@@ -659,7 +659,7 @@ function GetDiskSpaceRemote {
 
 	local cmd
 
-	cmd=$SSH_CMD' "if [ -d \"'$path_to_check'\" ]; then '$COMMAND_SUDO' df \"'$path_to_check'\"; else exit 1; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
+	cmd=$SSH_CMD' "if [ -d \"'$path_to_check'\" ]; then '$COMMAND_SUDO' '$DF_CMD' \"'$path_to_check'\"; else exit 1; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
 	Logger "cmd: $cmd" "DEBUG"
 	eval "$cmd" &
 	WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_DB_TASK $HARD_MAX_EXEC_TIME_DB_TASK ${FUNCNAME[0]} true $KEEP_LOGGING