diff --git a/doc/generic/pgf/lib/examplefinder.lua b/doc/generic/pgf/lib/examplefinder.lua
index 84a504b1a..22497ac90 100644
--- a/doc/generic/pgf/lib/examplefinder.lua
+++ b/doc/generic/pgf/lib/examplefinder.lua
@@ -1,10 +1,10 @@
 local lpeg = require("lpeg")
 local C, Ct, P, V = lpeg.C, lpeg.Ct, lpeg.P, lpeg.V
 
-local t = {}
+local finder = {}
 
 -- Grammar to extract code from function call to "example" with a string parameter
-t.grammar =
+finder.grammar =
     P {
     "example",
     begincodeexample = P "\n" ^ -1 * "example\n[[",
@@ -15,16 +15,16 @@ t.grammar =
     example = V "anything" * Ct(V "codeexample" * (V "anything" * V "codeexample") ^ 0) * V "anything"
 }
 
-function t.get_options(_)
+function finder.get_options(_)
     return {}
 end
 
-function t.get_content(e)
+function finder.get_content(e)
     return e[1]
 end
 
-function t.get_name()
+function finder.get_name()
     return "example"
 end
 
-return t
+return finder
diff --git a/doc/generic/pgf/lib/stringmatcher.lua b/doc/generic/pgf/lib/stringmatcher.lua
index 7453407e7..7616a6fc6 100644
--- a/doc/generic/pgf/lib/stringmatcher.lua
+++ b/doc/generic/pgf/lib/stringmatcher.lua
@@ -7,7 +7,7 @@ local SP = loc.space ^ 0 -- spaces
 
 -- Used to match a string which can be single-quoted, double-quoted or multi-line
 -- surrounded by inside double square brackets.
-local string_matcher =
+local matcher =
     P {
     "str",
     single_quoted = SP * "'" * C(((1 - P "'") + "\\'") ^ 0) * "'",
@@ -17,7 +17,7 @@ local string_matcher =
 }
 
 if not UNIT_TESTING then
-    return string_matcher
+    return matcher
 end
 
 -- Unit tests and debugging
@@ -74,7 +74,7 @@ local test_strings = {
 for _, s in ipairs(test_strings) do
     -- local match = lpeg.match(general_str, s)
     -- local match = general_str:match(s)
-    local match = string_matcher:match(s)
+    local match = matcher:match(s)
     if match then
         print("Match found: " .. match)
     else