kc3-lang/ftgl

diff --git a/src/FTVectoriser.cpp b/src/FTVectoriser.cpp
index ed5cf3d..467a75e 100644
--- a/src/FTVectoriser.cpp
+++ b/src/FTVectoriser.cpp
@@ -117,7 +117,7 @@ void FTMesh::End()
 }
 
 
-const FTTesselation* const FTMesh::Tesselation(unsigned int index) const
+const FTTesselation* const FTMesh::Tesselation(size_t index) const
 {
     return (index < tesselationList.size()) ? tesselationList[index] : NULL;
 }