diff --git a/Classes/BITArrowImageAnnotation.m b/Classes/BITArrowImageAnnotation.m
index f5daa0a92c..ec7ccd9a4a 100644
--- a/Classes/BITArrowImageAnnotation.m
+++ b/Classes/BITArrowImageAnnotation.m
@@ -97,8 +97,8 @@
   }
   
   
-  if (abs(CGRectGetWidth(boundRect)) < 30 || abs(CGRectGetHeight(boundRect)) < 30){
-    CGFloat smallerOne = MIN(abs(CGRectGetHeight(boundRect)), abs(CGRectGetWidth(boundRect)));
+  if (fabs(CGRectGetWidth(boundRect)) < 30 || fabs(CGRectGetHeight(boundRect)) < 30){
+    CGFloat smallerOne = MIN(fabs(CGRectGetHeight(boundRect)), fabs(CGRectGetWidth(boundRect)));
     
     CGFloat factor = smallerOne/30.f;
     
diff --git a/Classes/BITUpdateManager.m b/Classes/BITUpdateManager.m
index f58878854b..49e792947d 100644
--- a/Classes/BITUpdateManager.m
+++ b/Classes/BITUpdateManager.m
@@ -606,7 +606,7 @@ typedef NS_ENUM(NSInteger, BITUpdateAlertViewTag) {
   if (!self.checkInProgress) {
     
     if (!_lastUpdateCheckFromBlockingScreen ||
-        abs([NSDate timeIntervalSinceReferenceDate] - [_lastUpdateCheckFromBlockingScreen timeIntervalSinceReferenceDate]) > 60) {
+        fabs([NSDate timeIntervalSinceReferenceDate] - [_lastUpdateCheckFromBlockingScreen timeIntervalSinceReferenceDate]) > 60) {
       _lastUpdateCheckFromBlockingScreen = [NSDate date];
       [self checkForUpdateShowFeedback:NO];
     }