diff --git a/installation/resource/installer/bin/bisup.sh b/installation/resource/installer/bin/bisup.sh
index 72d707041388589ab0e27d6fa448c2fa7f074fb7..b7b972c4b4e07c026719bf49ef29c5eb2af53156 100755
--- a/installation/resource/installer/bin/bisup.sh
+++ b/installation/resource/installer/bin/bisup.sh
@@ -4,7 +4,7 @@
 #
 # Return the age of a file in seconds.
 #
-# paramter $1: a file name
+# parameter $1: a file name
 #
 function fileAgeInSeconds() {