diff -up src/sage/interfaces/qepcad.py.orig src/sage/interfaces/qepcad.py
--- src/sage/interfaces/qepcad.py.orig	2017-11-08 08:28:33.908219253 -0500
+++ src/sage/interfaces/qepcad.py	2017-11-08 08:28:43.336219614 -0500
@@ -530,8 +530,8 @@ TESTS:
 
 Check the qepcad configuration file::
 
-    sage: open('%s/default.qepcadrc'%SAGE_LOCAL).readlines()[-1]
-    'SINGULAR .../bin\n'
+    sage: open('/usr/share/qepcad/default.qepcadrc').readlines()[-1]
+    'SINGULAR /usr/bin\n'
 
 Tests related to the not tested examples (nondeterministic order of atoms)::
 
@@ -607,7 +607,6 @@ from __future__ import print_function
 from __future__ import absolute_import
 from six import string_types
 
-from sage.env import SAGE_LOCAL
 import pexpect
 import re
 import sys
@@ -620,6 +619,8 @@ from sage.docs.instancedoc import instan
 from .expect import Expect, ExpectFunction, AsciiArtString
 
 
+QEPCAD_LOCAL = "/usr/share/qepcad"
+
 def _qepcad_atoms(formula):
     r"""
     Return the atoms of a qepcad quantifier-free formula, as a set of strings.
@@ -649,17 +650,17 @@ def _qepcad_cmd(memcells=None):
 
         sage: from sage.interfaces.qepcad import _qepcad_cmd
         sage: s = _qepcad_cmd()
-        sage: s == 'env qe=%s qepcad '%SAGE_LOCAL
+        sage: s == 'env qe=/usr/share/qepcad qepcad '
         True
         sage: s = _qepcad_cmd(memcells=8000000)
-        sage: s == 'env qe=%s qepcad +N8000000'%SAGE_LOCAL
+        sage: s == 'env qe=/usr/share/qepcad qepcad +N8000000'
         True
     """
     if memcells is not None:
         memcells_arg = '+N%s' % memcells
     else:
         memcells_arg = ''
-    return "env qe=%s qepcad %s"%(SAGE_LOCAL, memcells_arg)
+    return "env qe=%s qepcad %s"%(QEPCAD_LOCAL, memcells_arg)
 
 _command_info_cache = None
 
@@ -684,7 +685,7 @@ def _update_command_info():
 
     cache = {}
 
-    with open('%s/bin/qepcad.help'%SAGE_LOCAL) as help:
+    with open('%s/bin/qepcad.help'%QEPCAD_LOCAL) as help:
         assert(help.readline().strip() == '@')
 
         while True: