diff --git a/scripts/functions/utility b/scripts/functions/utility
index d4bd0dfe68..936e144010 100644
--- a/scripts/functions/utility
+++ b/scripts/functions/utility
@@ -743,7 +743,7 @@ __rvm_package_list()
     *.tar.bz2)
       ${rvm_tar_command:-tar} tjf "$1"
       ;;
-    *.tar.gz|list-*.tgz)
+    *.tar.gz|*.tgz)
       ${rvm_tar_command:-tar} tzf "$1"
       ;;
     *)
@@ -764,7 +764,7 @@ __rvm_package_extract()
     *.tar.bz2)
       ${rvm_tar_command:-tar} xjf "$1" -C "$2" ${rvm_tar_options:-}
       ;;
-    *.tar.gz|extract-*.tgz)
+    *.tar.gz|*.tgz)
       ${rvm_tar_command:-tar} xzf "$1" -C "$2" ${rvm_tar_options:-}
       ;;
     *)
@@ -784,7 +784,7 @@ __rvm_package_create()
       else ${rvm_tar_command:-tar} cjf "$1" -C "$2" "$3"
       fi
       ;;
-    *.tar.gz|create-*.tgz)
+    *.tar.gz|*.tgz)
       if [[ -z "${3:-}" ]]
       then ${rvm_tar_command:-tar} czf "$1" "$2"
       else ${rvm_tar_command:-tar} czf "$1" -C "$2" "$3"