diff --git a/src/fr/neatmonster/nocheatplus/checks/moving/SurvivalFly.java b/src/fr/neatmonster/nocheatplus/checks/moving/SurvivalFly.java
index 45210072..40ed613b 100644
--- a/src/fr/neatmonster/nocheatplus/checks/moving/SurvivalFly.java
+++ b/src/fr/neatmonster/nocheatplus/checks/moving/SurvivalFly.java
@@ -192,7 +192,7 @@ public class SurvivalFly extends Check {
         double vDistanceAboveLimit = to.getY() - data.setBack.getY() - vAllowedDistance;
 
         // Step can also be blocked.
-        if (from.isOnGround() && to.isOnGround() && to.getY() - from.getY() == 1D && vDistanceAboveLimit <= 0D
+        if (from.isOnGround() && to.isOnGround() && Math.abs(to.getY() - from.getY() - 1D) <= 0.1 && vDistanceAboveLimit <= 0D
                 && !player.hasPermission(Permissions.MOVING_SURVIVALFLY_STEP))
             vDistanceAboveLimit = 1D;