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diff --git a/_src/erlang-error-index/w/W0035.md b/_src/erlang-error-index/w/W0035.md
@@ -9,13 +9,13 @@ sidebar_position: 35
 ```erlang
 main(List) ->
     lists:foldl(fun(K, Acc) -> Acc#{K => []} end, #{}, List).
-    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 information: Unnecessary explicit fold to construct map from list.
+%%  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 information: Unnecessary explicit fold to construct map from list.
 ```
 
 ```erlang
 main(List) ->
     lists:foldl(fun({K,V}, Acc) -> Acc#{K => V} end, #{}, List).
-    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 information: Unnecessary explicit fold to construct map from list.
+%%  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 information: Unnecessary explicit fold to construct map from list.
 ```
 
 ## Explanation

diff --git a/_src/erlang-error-index/w/W0036.md b/_src/erlang-error-index/w/W0036.md
@@ -0,0 +1,32 @@
+---
+sidebar_position: 36
+---
+
+# W0036 - unnecessary Map From List Around Comprehension
+
+## Warning
+
+```erlang
+fn(List) -> maps:from_list([{K + 1, V + 2} || {K,V} <- List]).
+%%          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 weak: Unnecessary intermediate list allocated.
+```
+
+## Explanation
+
+The warning message indicates an unidiomatic and sub-optimal way to build a map
+from a list.
+
+Whilst the comprehension and subsequent call to `maps:from_list/1` will ultimately
+construct a map from the key-values pair in the given list, it is less
+efficient than it could be, since an intermediate list is created by the list
+comprehension.
+
+Using the map comprehension syntax is clearer and more performant.
+
+To fix this warning, replace the list comprehension and `maps:from_list/1` call
+with a map comprehension:
+
+```erlang
+main(List) ->
+    #{K + 1 => V + 2 || {K,V} <- List}.
+```
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