diff --git a/doc/error_codes.md b/doc/error_codes.md
index e6636442c8ef069c4ea4515c486674ec2a957026..a6cc903b8c32341797bed5a9b2885e1ccbe6acd2 100644
--- a/doc/error_codes.md
+++ b/doc/error_codes.md
@@ -13,5 +13,3 @@
 * 51: Could not create file
 * 52: Could not move directory
 * 53: Could not move file
-
-* 99: Error code reserved for actions that should never happen