diff --git a/letsencrypt-auto b/letsencrypt-auto
index 44de7fbf2..4d541d5bc 100755
--- a/letsencrypt-auto
+++ b/letsencrypt-auto
@@ -83,10 +83,10 @@ ExperimentalBootstrap() {
 }
 
 DeterminePythonVersion() {
-  if command -v python2 > /dev/null ; then
-    export LE_PYTHON=${LE_PYTHON:-python2}
-  elif command -v python2.7 > /dev/null ; then
+  if command -v python2.7 > /dev/null ; then
     export LE_PYTHON=${LE_PYTHON:-python2.7}
+  elif command -v python2 > /dev/null ; then
+    export LE_PYTHON=${LE_PYTHON:-python2}
   elif command -v python > /dev/null ; then
     export LE_PYTHON=${LE_PYTHON:-python}
   else