diff --git a/libs/geom/include/psemek/geom/matrix.hpp b/libs/geom/include/psemek/geom/matrix.hpp
index f82fe15d..57f4eef2 100644
--- a/libs/geom/include/psemek/geom/matrix.hpp
+++ b/libs/geom/include/psemek/geom/matrix.hpp
@@ -70,8 +70,7 @@ namespace psemek::geom
 	{
 		matrix<T, R, C> m = zero();
 		for (std::size_t i = 0; i < std::min(R, C); ++i)
-			for (std::size_t j = 0; j < C; ++j)
-				m[i][i] = s;
+			m[i][i] = s;
 		return m;
 	}