diff --git a/src/Solver.cpp b/src/Solver.cpp
index 96aef1a..4677c4b 100644
--- a/src/Solver.cpp
+++ b/src/Solver.cpp
@@ -51,6 +51,5 @@ VectAffine Solver::TriangularSystem() const {
 }
 
 std::size_t Solver::Rank() const {
-	Vect image = Image();
-	return image.GetCardinal();
+	return Image().GetCardinal();
 }