diff --git a/realpath.sh b/realpath.sh
index 75d9e58..3e8327a 100755
--- a/realpath.sh
+++ b/realpath.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-p="$1"
+p="${1%/}"
 target=$(readlink "$p")
 
 case "$target" in