diff --git a/create_test.sh b/create_test.sh
index f2367cd..588263d 100755
--- a/create_test.sh
+++ b/create_test.sh
@@ -24,7 +24,7 @@ pkg_dir=$(get_pkg_dir $pkg)
 
 configure_main "$session" "$(get_pkg_name $pkg_dir)"
 
-send_src "$pkg_dir" "$session"
+send_src_unique "$pkg_dir" "$session" "$@"
 
 for p in "$@"
 do
diff --git a/deploy.sh b/deploy.sh
index 27bccb7..2688f91 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -25,7 +25,7 @@ pkg_dir=$(get_pkg_dir $pkg)
 
 configure_pkg_launch "$session" "$pkg_dir" "$launch"
 
-send_src "$pkg_dir" "$session"
+send_src_unique "$pkg_dir" "$session" "$@"
 
 for p in "$@"
 do
diff --git a/helper.bash b/helper.bash
index 51a8ab4..e72ec58 100644
--- a/helper.bash
+++ b/helper.bash
@@ -128,3 +128,28 @@ function send_src {
     tar_src $1 > "$t"
     upload "$2/src" "$t" && rm $t || { rm $t; error "could not upload"; }
 }
+
+function test_unique_dir {
+    local test_dir
+    local other_dir
+    test_dir=$(cd "$1"; pwd -P)
+    shift
+    for p in "$@"
+    do
+        other_dir=$(cd "$p"; pwd -P)
+        if [[ "$test_dir" == "$other_dir"* ]]; then
+            return 1
+        fi
+    done
+    return 0
+}
+
+function send_src_unique {
+    local path=$1
+    local session=$2
+    shift 2
+    if test_unique_dir "$path" "$@"; then
+        send_src "$path" "$session"
+    fi
+    return 0
+}