diff --git a/Spatial_searching/doc_tex/Spatial_searching/main.tex b/Spatial_searching/doc_tex/Spatial_searching/main.tex
index cd3cb758aba..a70f6fd6f87 100755
--- a/Spatial_searching/doc_tex/Spatial_searching/main.tex
+++ b/Spatial_searching/doc_tex/Spatial_searching/main.tex
@@ -1,5 +1,5 @@
 
-\chapter{Spatial Searching}
+\chapter{dD Spatial Searching}
 \label{ChapterUserSpatialSearching}
 \input{Spatial_searching/intro.tex}
 %% EOF
diff --git a/Spatial_searching/doc_tex/Spatial_searching_ref/intro.tex b/Spatial_searching/doc_tex/Spatial_searching_ref/intro.tex
index a954a4430f8..875293cc577 100755
--- a/Spatial_searching/doc_tex/Spatial_searching_ref/intro.tex
+++ b/Spatial_searching/doc_tex/Spatial_searching_ref/intro.tex
@@ -1,4 +1,4 @@
-\chapter{Spatial Searching}
+\chapter{dD Spatial Searching}
 \label{ChapterReferenceSpatialSearching}
 
 \ccChapterAuthor{Hans Tangelder \and Andreas Fabri}