diff --git a/core/src/main/java/com/blundell/quicksand/DurationCalculator.java b/core/src/main/java/com/blundell/quicksand/DurationCalculator.java
index 670edaf..d496256 100644
--- a/core/src/main/java/com/blundell/quicksand/DurationCalculator.java
+++ b/core/src/main/java/com/blundell/quicksand/DurationCalculator.java
@@ -6,11 +6,11 @@
 class DurationCalculator {
 
     public long calculateNewDuration(ViscosityInterpolator viscosity, long timesAnimationViewed, long currentDuration) {
-        if (currentDuration == 0) {
+        if (currentDuration.equals(0)) {
             Log.e("duration was zero");
             return 0;
         }
-        if (timesAnimationViewed == 0) {
+        if (timesAnimationViewed.equals(0)) {
             Log.v("first time viewing so no duration change");
             return currentDuration;
         }