diff --git a/src/time_compat.erl b/src/time_compat.erl
index 6604431..42ab2e4 100644
--- a/src/time_compat.erl
+++ b/src/time_compat.erl
@@ -26,7 +26,7 @@
 %% versions. This way your code can automatically take advantage
 %% of the improvements in the API when available. This is an
 %% example of how to implement such an API, but it can be used
-%% as is if you want to. Just add (a preferrably renamed version of)
+%% as is if you want to. Just add (a preferably renamed version of)
 %% this module to your project, and call the API via this module
 %% instead of calling the BIFs directly.
 %%
@@ -242,7 +242,7 @@ unique_integer_pre_18(Modifiers) ->
     case is_valid_modifier_list(Modifiers) of
 		true ->
 		    %% now() converted to an integer
-		    %% fullfill the requirements of
+		    %% fulfill the requirements of
 		    %% all modifiers: unique, positive,
 		    %% and monotonic...
 		    {MS, S, US} = erlang:now(),