diff --git a/bin/cget.sh b/bin/cget.sh
index 13e0942..8676641 100755
--- a/bin/cget.sh
+++ b/bin/cget.sh
@@ -223,7 +223,7 @@ tmp_file="${TMP_DIR}/http_resource_$$.xml"
 # in library file http_tools.sh.
 #
 $verbose_mode && printf "$script_name requesting resource: %s\n" "$location"
-conditional_get $local_opts -d "$CACHE_DIR" -t "$TMP_DIR" "$location" > "$tmp_file"
+conditional_get $local_opts -d "$CACHE_DIR" -T "$TMP_DIR" "$location" > "$tmp_file"
 exit_code=$?
 if [ $exit_code -ne 0 ]; then
 	if [ $exit_code -gt 1 ]; then
diff --git a/lib/http_tools.sh b/lib/http_tools.sh
index 04fed79..c537517 100755
--- a/lib/http_tools.sh
+++ b/lib/http_tools.sh
@@ -30,7 +30,7 @@ fi
 # response body. If the server responds with 304, return the cached 
 # resource instead.
 #
-# Usage: conditional_get [-v] [-F | -C] -d CACHE_DIR -t TMP_DIR HTTP_LOCATION
+# Usage: conditional_get [-v] [-F | -C] -d CACHE_DIR -T TMP_DIR HTTP_LOCATION
 #
 # This function requires two option arguments (CACHE_DIR and TMP_DIR)
 # and a command-line argument (HTTP_LOCATION). The rest of the command
@@ -41,7 +41,7 @@ fi
 #   -F   force the return of a fresh resource
 #   -C   check the cache only
 #   -d   the cache directory (REQUIRED)
-#   -t   a temporary directory (REQUIRED)
+#   -T   a temporary directory (REQUIRED)
 #
 # Use option -F or -C to alter the default behavior of the function.
 #
@@ -124,7 +124,7 @@ conditional_get () {
 	local opt
 	local OPTARG
 	local OPTIND
-	while getopts ":vFCd:t:" opt; do
+	while getopts ":vFCd:T:" opt; do
 		case $opt in
 			v)
 				verbose_mode=true
@@ -140,7 +140,7 @@ conditional_get () {
 			d)
 				cache_dir="$OPTARG"
 				;;
-			t)
+			T)
 				tmp_dir="$OPTARG"
 				;;
 			\?)