diff --git a/src/librender/particleproc.cpp b/src/librender/particleproc.cpp
index f3bfd0ad..9f9a30b4 100644
--- a/src/librender/particleproc.cpp
+++ b/src/librender/particleproc.cpp
@@ -222,7 +222,7 @@ void ParticleTracer::process(const WorkUnit *workUnit, WorkResult *workResult,
 #if 0
 				/* This is somewhat unfortunate: for accuracy, we'd really want the
 				   correction factor below to match the path tracing interpretation
-				   of a scene with surface normals. However, this factor can become
+				   of a scene with shading normals. However, this factor can become
 				   extremely large, which adds unacceptable variance to output
 				   renderings.