diff --git a/qemu-vm b/qemu-vm
index c049921..06f0bd6 100755
--- a/qemu-vm
+++ b/qemu-vm
@@ -66,8 +66,8 @@ MEM_PATH="$(SUDO="$SUDO" qemu-vm-mem init "$NUM_MEM")"
 t="$(mktemp -d)"
 for f in "$CONFIG_PATH_ARGUMENTS/"*.sh "$CONFIG_PATH_ARGUMENTS_SPECIFIC/"*.sh; do
   (
-    export SUDO="$SUDO"
-    export MEM_PATH="$MEM_PATH"
+    export SUDO
+    export MEM_PATH
     source "$f"
     newfile="$(basename "$f" .sh)"
     envsubst < "${f%.sh}" > "$t/$newfile"