diff --git a/Geo/GModel.cpp b/Geo/GModel.cpp
index 69d2047fc6656f88ccc32c4dfac20b89a14a31a9..2d5a1ca396b80b48e2db68ca9772fd67da51c912 100644
--- a/Geo/GModel.cpp
+++ b/Geo/GModel.cpp
@@ -2749,6 +2749,8 @@ void GModel::addHomologyRequest(const std::string &type, std::vector<int> &domai
 
 void GModel::computeHomology()
 {
+  if(_homologyRequests.empty()) return;
+
 #if defined(HAVE_KBIPACK)
   // find unique domain/subdomain requests
   typedef std::pair<std::vector<int>, std::vector<int> > dpair;