diff --git a/lua/pl/seq.lua b/lua/pl/seq.lua
index ecc7a4ce..5b9424b5 100644
--- a/lua/pl/seq.lua
+++ b/lua/pl/seq.lua
@@ -281,7 +281,7 @@ end
 -- @param iter a sequence
 -- @param sep the separator (default space)
 -- @param nfields maximum number of values per line (default 7)
--- @param fmt optional format function for each value
+-- @param fmt optional format string for each value
 function seq.printall(iter,sep,nfields,fmt)
   local write = io.write
   if not sep then sep = ' ' end