diff --git a/src/backuptask.js b/src/backuptask.js
index 6a33a7923..fb8c26ea9 100644
--- a/src/backuptask.js
+++ b/src/backuptask.js
@@ -65,7 +65,7 @@ async function checkPreconditions(backupConfig, dataLayout) {
         used += parseInt(result, 10);
     }
 
-    debug(`checkPreconditions: total required =${used} available=${df.available}`);
+    debug(`checkPreconditions: total required=${used} available=${df.available}`);
 
     const needed = 0.6 * used + (1024 * 1024 * 1024); // check if there is atleast 1GB left afterwards. aim for 60% because rsync/tgz won't need full 100%
     if (df.available <= needed) throw new BoxError(BoxError.FS_ERROR, `Not enough disk space for backup. Needed: ${df.prettyBytes(needed)} Available: ${df.prettyBytes(df.available)}`);