diff --git a/teuthology/suite/fragment-merge.lua b/teuthology/suite/fragment-merge.lua
index 719efd887..3fcb7fbb1 100644
--- a/teuthology/suite/fragment-merge.lua
+++ b/teuthology/suite/fragment-merge.lua
@@ -12,7 +12,7 @@ local function matches(_ENV, f)
     return true
   end
   if filter_fragments then
-    for i,path in py_enumerate(base_frag_paths) do
+    for i,path in python.enumerate(base_frag_paths) do
       if path:find(f) then
         return true
       end
@@ -22,7 +22,7 @@ end
 
 local function check_filters(_ENV)
   if filter_all then
-    for i,f in py_enumerate(filter_all) do
+    for i,f in python.enumerate(filter_all) do
       if not matches(_ENV, f) then
         reject()
       end
@@ -30,7 +30,7 @@ local function check_filters(_ENV)
   end
   if filter_in then
     local found, tried = false, false
-    for i,f in py_enumerate(filter_in) do
+    for i,f in python.enumerate(filter_in) do
       tried = true
       if matches(_ENV, f) then
         found = true
@@ -42,7 +42,7 @@ local function check_filters(_ENV)
     end
   end
   if filter_out then
-    for i,f in py_enumerate(filter_out) do
+    for i,f in python.enumerate(filter_out) do
       if matches(_ENV, f) then
         reject()
       end