diff --git a/app/src/main/java/at/bitfire/davdroid/syncadapter/SyncManager.java b/app/src/main/java/at/bitfire/davdroid/syncadapter/SyncManager.java
index 0349ad1a..340f9aaf 100644
--- a/app/src/main/java/at/bitfire/davdroid/syncadapter/SyncManager.java
+++ b/app/src/main/java/at/bitfire/davdroid/syncadapter/SyncManager.java
@@ -113,7 +113,7 @@ abstract public class SyncManager {
             if (settings.logToExternalFile())
                 log = new ExternalFileLogger(context, "davdroid-SyncManager-" + account.name + "-" + authority + ".txt", settings.logVerbose());
         } catch(IOException e) {
-            log.error("Couldn't log to external file", e);
+            Constants.log.error("Couldn't log to external file", e);
         }
         if (log == null)
             log = Constants.log;