diff --git a/cue.py b/cue.py
index 7d8db00..2185489 100644
--- a/cue.py
+++ b/cue.py
@@ -838,17 +838,14 @@ CROSS_COMPILER_TARGET_ARCHS += windows-x64-mingw''')
 RTEMS_VERSION={0}
 RTEMS_BASE={1}'''.format(os.environ['RTEMS'], rtemsdir))
 
-                # Patch Base 3.15 that doesn't have -qemu target architecture
-                if not os.path.exists(os.path.join(places['EPICS_BASE'], 'configure', 'os',
+                # Base 3.15 doesn't have -qemu target architecture
+                qemu_suffix = ''
+                if os.path.exists(os.path.join(places['EPICS_BASE'], 'configure', 'os',
                                                'CONFIG.Common.RTEMS-pc386-qemu')):
-                    print('Adding RTEMS-pc386-qemu target to Base in {0}'.format(places['EPICS_BASE']))
-                    sys.stdout.flush()
-                    sp.check_call(['patch', '-p1', '-i',
-                                   os.path.join(ci['scriptsdir'], 'add-RTEMS-pc368-qemu-target.patch')],
-                                  cwd=places['EPICS_BASE'])
+                    qemu_suffix = '-qemu'
                 with open(os.path.join(places['EPICS_BASE'], 'configure', 'CONFIG_SITE'), 'a') as f:
                     f.write('''
-CROSS_COMPILER_TARGET_ARCHS += RTEMS-pc386-qemu''')
+CROSS_COMPILER_TARGET_ARCHS += RTEMS-pc386{0}'''.format(qemu_suffix))
 
         host_ccmplr_name = re.sub(r'^([a-zA-Z][^-]*(-[a-zA-Z][^-]*)*)+(-[0-9.]|)$', r'\1', ci['compiler'])
         host_cmplr_ver_suffix = re.sub(r'^([a-zA-Z][^-]*(-[a-zA-Z][^-]*)*)+(-[0-9.]|)$', r'\3', ci['compiler'])