diff --git a/convex_decomposition/manifest.xml b/convex_decomposition/manifest.xml
index a2e0ac2..568adb9 100644
--- a/convex_decomposition/manifest.xml
+++ b/convex_decomposition/manifest.xml
@@ -22,6 +22,7 @@ appears to be no available revision control.
 <license>MIT</license>
 <review status="3rdparty doc reviewed" notes=""/>
 <url>http://www.amillionpixels.us/ConvexDecomposition.zip</url>
+<rosdep name="unzip"/>
 <export>
   <cpp lflags="-L${prefix}/ConvexDecomposition/lib " cflags="-I${prefix}/ConvexDecomposition/include"/>
 </export>