diff --git a/engine/src/core/com/jme3/effect/ParticleEmitter.java b/engine/src/core/com/jme3/effect/ParticleEmitter.java
index c00e66eed..871a916f6 100644
--- a/engine/src/core/com/jme3/effect/ParticleEmitter.java
+++ b/engine/src/core/com/jme3/effect/ParticleEmitter.java
@@ -718,8 +718,9 @@ public class ParticleEmitter extends Geometry {
      */
     public void setParticlesPerSec(float particlesPerSec) {
         this.particlesPerSec = particlesPerSec;
+        timeDifference = 0;
     }
-
+    
     /**
      * Get the start color of the particles spawned.
      *