diff --git a/git-flow-support b/git-flow-support
index 2edd46e..07c9ed2 100644
--- a/git-flow-support
+++ b/git-flow-support
@@ -34,7 +34,7 @@
 	typeset support_branches
 	typeset current_branch
 	typeset short_names
-	support_branches="$(echo "$LOCAL_BRANCHES" | grep "^$PREFIX")"
+	support_branches=$(echo "$LOCAL_BRANCHES" | grep "^$PREFIX")
 	if [ -z "$support_branches" ]; then
 		warn "No support branches exist."
 		exit 0
@@ -53,7 +53,7 @@
 
 	typeset branch
 	for branch in $short_names; do
-		typeset fullname="$PREFIX$branch"
+		typeset fullname=$PREFIX$branch
 		typeset base=$(git merge-base "$fullname" "$MASTER_BRANCH")
 		typeset master_sha=$(git rev-parse "$MASTER_BRANCH")
 		typeset branch_sha=$(git rev-parse "$fullname")
@@ -70,9 +70,9 @@
 				typeset tagname=$(git name-rev --tags --no-undefined --name-only $base)
 				typeset nicename
 				if [ "$tagname" != "" ]; then
-					nicename="$tagname"
+					nicename=$tagname
 				else
-					nicename="$(git rev-parse --short $base)"
+					nicename=$(git rev-parse --short $base)
 				fi
 				printf "(based on $nicename)"
 			fi
@@ -94,8 +94,8 @@
 	eval set -- "${FLAGS_ARGV}"
 
 	# read arguments into global variables
-	VERSION="$1"
-	BASE="$2"
+	VERSION=$1
+	BASE=$2
 	BRANCH=$PREFIX$VERSION
 }