diff --git a/docs/api/srfi/27.md b/docs/api/srfi/27.md
index 561b4ef0..4420b939 100644
--- a/docs/api/srfi/27.md
+++ b/docs/api/srfi/27.md
@@ -20,13 +20,13 @@ more information.
 
     (random-integer n)
 
-Return the next integer in {0, ..., n-1}.
+Return the next integer in `{0, ..., n-1}`.
 
 # random-real
 
     (random-real)
 
-The next number `x` such that 0 < x 1.
+The next number `x` such that `0 < x < 1`.
 
 # default-random-source