diff --git a/Principal_component_analysis/doc_tex/Principal_component_analysis/PkgDescription.tex b/Principal_component_analysis/doc_tex/Principal_component_analysis/PkgDescription.tex
index e914eb27a18..8ca6001d1ea 100644
--- a/Principal_component_analysis/doc_tex/Principal_component_analysis/PkgDescription.tex
+++ b/Principal_component_analysis/doc_tex/Principal_component_analysis/PkgDescription.tex
@@ -5,7 +5,7 @@
 %\ccPkgDependsOn{}
 \ccPkgIntroducedInCGAL{3.2}
 \ccPkgLicense{\ccLicenseQPL}
-\ccPkgDemo{Operations on Polygon}{demo/polygon.zip}
+\ccPkgDemo{Operations on Polygons}{demo/polygon.zip}
 \ccPkgDemo{Operations on Polyhedra}{demo/polyhedron_3.zip}
 \ccPkgIllustration{Principal_component_analysis/teaserLeastSquaresFitting.png}{Principal_component_analysis/teaserLeastSquaresFitting-large.png}
 \end{ccPkgDescription}