diff --git a/src/sage/matrix/matrix_gfpn_dense.pyx b/src/sage/matrix/matrix_gfpn_dense.pyx
index d2a1d6e8347..bbf35cca230 100644
--- a/src/sage/matrix/matrix_gfpn_dense.pyx
+++ b/src/sage/matrix/matrix_gfpn_dense.pyx
@@ -210,7 +210,7 @@ cdef class PrimeFieldConverter_class(FieldConverter_class):
             sage: from sage.matrix.matrix_gfpn_dense import PrimeFieldConverter_class  # optional: meataxe
             sage: F = GF(5)
             sage: C = PrimeFieldConverter_class(F)  # optional: meataxe
-            sage: C.int_to_field(int(2))
+            sage: C.int_to_field(int(2))            # optional: meataxe
             2
             sage: F(2)
             2
diff --git a/src/sage/matrix/matrix_space.py b/src/sage/matrix/matrix_space.py
index 87f0ef311b9..e2585bbcd86 100644
--- a/src/sage/matrix/matrix_space.py
+++ b/src/sage/matrix/matrix_space.py
@@ -989,7 +989,7 @@ def _get_matrix_class(self):
             <type 'sage.matrix.matrix_mod2_dense.Matrix_mod2_dense'>
             sage: type(matrix(GF(64,'z'), 2, range(4)))
             <type 'sage.matrix.matrix_gf2e_dense.Matrix_gf2e_dense'>
-            sage: type(matrix(GF(125,'z'), 2, range(4)))
+            sage: type(matrix(GF(125,'z'), 2, range(4)))     # optional: meataxe
             <type 'sage.matrix.matrix_gfpn_dense.Matrix_gfpn_dense'>
         """
         R = self.base_ring()