diff --git a/Monal/Classes/MLConstants.h b/Monal/Classes/MLConstants.h
index 864be98d5..ea1725bd3 100644
--- a/Monal/Classes/MLConstants.h
+++ b/Monal/Classes/MLConstants.h
@@ -145,7 +145,8 @@ static inline NSString* _Nonnull LocalizationNotNeeded(NSString* _Nonnull s)
 #define kMonalIncomingSDP @"kMonalIncomingSDP"
 #define kMonalIncomingICECandidate @"kMonalIncomingICECandidate"
 #define kMonalWillBeFreezed @"kMonalWillBeFreezed"
-#define kMonalIsFreezed @"kMonalIsFreezed"
+#define kMonalFrozen @"kMonalFrozen"
+#define kMonalUnfrozen @"kMonalUnfrozen"
 #define kMonalNewMessageNotice @"kMonalNewMessageNotice"
 #define kMonalMucSubjectChanged @"kMonalMucSubjectChanged"
 #define kMonalDeletedMessageNotice @"kMonalDeletedMessageNotice"
diff --git a/Monal/Classes/MLProcessLock.m b/Monal/Classes/MLProcessLock.m
index 1f6ac4cc3..a25952541 100755
--- a/Monal/Classes/MLProcessLock.m
+++ b/Monal/Classes/MLProcessLock.m
@@ -65,7 +65,7 @@ +(void) lock
         lock = flock(_ownLockFD, LOCK_EX | LOCK_NB);
         if(lock != 0)
             @throw [NSException exceptionWithName:@"LockingError" reason:[NSString stringWithFormat:@"flock returned: %d (%d) on file: %s", lock, errno, _ownLockPath] userInfo:nil];
-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(unlock) name:kMonalIsFreezed object:nil];
+        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(unlock) name:kMonalFrozen object:nil];
     }
 }