diff --git a/src/osgParticle/ParticleProcessor.cpp b/src/osgParticle/ParticleProcessor.cpp
index 00f56dd44..0f2a8622b 100644
--- a/src/osgParticle/ParticleProcessor.cpp
+++ b/src/osgParticle/ParticleProcessor.cpp
@@ -47,7 +47,8 @@ osgParticle::ParticleProcessor::ParticleProcessor(const ParticleProcessor& copy,
     _lifeTime(copy._lifeTime),
     _startTime(copy._startTime),
     _currentTime(copy._currentTime),
-    _resetTime(copy._resetTime)
+    _resetTime(copy._resetTime),
+    _frameNumber(copy._frameNumber)
 {
 }