diff --git a/tldr/$ b/tldr/$
index 2584d9eb..4475fd8a 100644
--- a/tldr/$
+++ b/tldr/$
@@ -22,7 +22,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Print one of the prompt strings:
 
-`echo ${{PS1|PS2|PS3|PS4}}`
+`echo ${{PS0|PS1|PS2|PS3|PS4}}`
 
 - Expand with the output of `command` and run it. Same as enclosing `command` in backtics:
 
diff --git a/tldr/md5sum b/tldr/md5sum
index 7e41da94..13e663e4 100644
--- a/tldr/md5sum
+++ b/tldr/md5sum
@@ -6,7 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # md5sum
 
 > Calculate MD5 cryptographic checksums.
-> More information: <https://www.gnu.org/software/coreutils/md5sum>.
+> More information: <https://www.gnu.org/software/coreutils/manual/html_node/md5sum-invocation.html>.
 
 - Calculate the MD5 checksum for one or more files: