diff --git a/sup b/sup
index c961d38..d4a5fae 100755
--- a/sup
+++ b/sup
@@ -43,7 +43,7 @@ sup.usage() {
 		        -D <num>             # Delay the shot by <num> seconds.
 		        -p                   # Make the file private. Requires \$secret to be set in the config.
 		        -u                   # Generate a shortlink from URL.
-		        -m                   # Maximum filesize (in megabytes)
+		        -m                   # Maximum filesize (takes K, M and G suffixes)
 		
 		    Config options (~/.suprc):
 		        secret               # Your personal token. Get it at https://zfh.so/settings_form