diff --git a/lib/stdlib/src/rand.erl b/lib/stdlib/src/rand.erl
index e2f027862787..1a95030fc7ba 100644
--- a/lib/stdlib/src/rand.erl
+++ b/lib/stdlib/src/rand.erl
@@ -1466,7 +1466,7 @@ dummy_seed({A1, A2, A3}) ->
 %% the same sequence in the reverse order.  The generator
 %% CX1 = (A * CX0) rem P
 %% that uses the multiplicative inverse mod P is, indeed,
-%% an exact equevalent to the corresponding MWC generator.
+%% an exact equivalent to the corresponding MWC generator.
 %%
 %% An MWC generator has, due to the power of two multiplier
 %% in the corresponding MCG, got known statistical weaknesses