diff --git a/src/sage/libs/singular/function.pyx b/src/sage/libs/singular/function.pyx
index 87342e8..9a0d37d 100644
--- a/src/sage/libs/singular/function.pyx
+++ b/src/sage/libs/singular/function.pyx
@@ -1258,7 +1258,7 @@ cdef class SingularFunction(SageObject):
             Traceback (most recent call last):
             ...
             RuntimeError: error in Singular function call 'size':
-            Wrong number of arguments (got 2 arguments, arity code is 300)
+            Wrong number of arguments (got 2 arguments, arity code is 302)
             sage: size('foobar', ring=P)
             6
 
@@ -1667,17 +1667,17 @@ def singular_function(name):
         Traceback (most recent call last):
         ...
         RuntimeError: error in Singular function call 'factorize':
-        Wrong number of arguments (got 0 arguments, arity code is 303)
+        Wrong number of arguments (got 0 arguments, arity code is 305)
         sage: factorize(f, 1, 2)
         Traceback (most recent call last):
         ...
         RuntimeError: error in Singular function call 'factorize':
-        Wrong number of arguments (got 3 arguments, arity code is 303)
+        Wrong number of arguments (got 3 arguments, arity code is 305)
         sage: factorize(f, 1, 2, 3)
         Traceback (most recent call last):
         ...
         RuntimeError: error in Singular function call 'factorize':
-        Wrong number of arguments (got 4 arguments, arity code is 303)
+        Wrong number of arguments (got 4 arguments, arity code is 305)
 
     The Singular function ``list`` can be called with any number of
     arguments::
diff --git a/src/sage/algebras/letterplace/free_algebra_element_letterplace.pyx b/src/sage/algebras/letterplace/free_algebra_element_letterplace.pyx
index 8f6576b477..deaf0f5769 100644
--- a/src/sage/algebras/letterplace/free_algebra_element_letterplace.pyx
+++ b/src/sage/algebras/letterplace/free_algebra_element_letterplace.pyx
@@ -447,7 +447,7 @@ cdef class FreeAlgebraElement_letterplace(AlgebraElement):
             return True
         for i from 0 <= i < p_d-s_d:
             s_poly = singular_system("stest",s_poly,1,
-                                     A._degbound,A.__ngens,ring=P)
+                                     ring=P)
             if P.monomial_divides(s_poly,p_poly):
                 return True
         return False
@@ -601,7 +601,7 @@ cdef class FreeAlgebraElement_letterplace(AlgebraElement):
         # we must put the polynomials into the same ring
         left._poly = A._current_ring(left._poly)
         right._poly = A._current_ring(right._poly)
-        rshift = singular_system("stest",right._poly,left._poly.degree(),A._degbound,A.__ngens, ring=A._current_ring)
+        rshift = singular_system("stest",right._poly,left._poly.degree(), ring=A._current_ring)
         return FreeAlgebraElement_letterplace(A,left._poly*rshift, check=False)
 
     def __pow__(FreeAlgebraElement_letterplace self, int n, k):
@@ -629,7 +629,7 @@ cdef class FreeAlgebraElement_letterplace(AlgebraElement):
         q = p = self._poly
         cdef int i
         for i from 0<i<n:
-            q = singular_system("stest",q,d,A._degbound,A.__ngens,
+            q = singular_system("stest",q,d,
                                      ring=A._current_ring)
             p *= q
         return FreeAlgebraElement_letterplace(A, p, check=False)
diff --git a/src/sage/algebras/letterplace/free_algebra_letterplace.pyx b/src/sage/algebras/letterplace/free_algebra_letterplace.pyx
index 7a8400052e..b3474fa07c 100644
--- a/src/sage/algebras/letterplace/free_algebra_letterplace.pyx
+++ b/src/sage/algebras/letterplace/free_algebra_letterplace.pyx
@@ -683,7 +683,7 @@ cdef class FreeAlgebra_letterplace(Algebra):
         degbound = self._degbound
         cdef list G = [C(x._poly) for x in g]
         for y in G:
-            out.extend([y]+[singular_system("stest",y,n+1,degbound,ngens,ring=C) for n in xrange(d-y.degree())])
+            out.extend([y]+[singular_system("stest",y,n+1,ring=C) for n in xrange(d-y.degree())])
         return C.ideal(out)
 
     ###########################
diff --git a/src/sage/algebras/letterplace/letterplace_ideal.pyx b/src/sage/algebras/letterplace/letterplace_ideal.pyx
index 5776c58cf7..e4ad267bd4 100644
--- a/src/sage/algebras/letterplace/letterplace_ideal.pyx
+++ b/src/sage/algebras/letterplace/letterplace_ideal.pyx
@@ -48,7 +48,7 @@ from sage.rings.infinity import Infinity
 #####################
 # Define some singular functions
 lib("freegb.lib")
-singular_system=singular_function("system")
+singular_std=singular_function("std")
 poly_reduce=singular_function("NF")
 
 class LetterplaceIdeal(Ideal_nc):
@@ -276,8 +276,7 @@ class LetterplaceIdeal(Ideal_nc):
         A.set_degbound(degbound)
         P = A._current_ring
         out = [FreeAlgebraElement_letterplace(A,X,check=False) for X in
-               singular_system("freegb",P.ideal([x._poly for x in self.__GB.gens()]),
-                               degbound,A.__ngens, ring = P)]
+               singular_std(P.ideal([x._poly for x in self.__GB.gens()]), ring = P)]
         libsingular_options['redTail'] = bck[0]
         libsingular_options['redSB'] = bck[1]
         self.__GB = A.ideal(out,side='twosided',coerce=False)