diff --git a/apps/openmw/mwrender/ripplesimulation.cpp b/apps/openmw/mwrender/ripplesimulation.cpp
index b7661ca664..3e8a6fd2ec 100644
--- a/apps/openmw/mwrender/ripplesimulation.cpp
+++ b/apps/openmw/mwrender/ripplesimulation.cpp
@@ -243,7 +243,7 @@ namespace MWRender
             }
             else
             {
-                if (mMaxNumberRipples == 0)
+                if (mMaxNumberRipples <= 0)
                     return;
 
                 osgParticle::ParticleSystem::ScopedWriteLock lock(*mParticleSystem->getReadWriteMutex());