diff -r 3aa0c203747c -r d06a2feae373 cubicweb/devtools/devctl.py
--- a/cubicweb/devtools/devctl.py	Wed Apr 10 17:59:17 2019 +0000
+++ b/cubicweb/devtools/devctl.py	Thu Apr 18 04:34:34 2019 +0000
@@ -786,7 +786,7 @@
                     continue
                 try:
                     rql, time = line.split('--')
-                    rql = re.sub("(\'\w+': \d*)", '', rql)
+                    rql = re.sub(r"(\'\w+': \d*)", '', rql)
                     if '{' in rql:
                         rql = rql[:rql.index('{')]
                     req = requests.setdefault(rql, [])