diff --git a/bin/check_electrum_wallet_completeness b/bin/check_electrum_wallet_completeness
old mode 100644
new mode 100755
index ddcdec01d9bcd90b9964b5b5d73a4b7ce823ed21..bfe12b5b97a3e5fc0ad04dbbd145236e78b7626c
--- a/bin/check_electrum_wallet_completeness
+++ b/bin/check_electrum_wallet_completeness
@@ -1,3 +1,4 @@
+#!/usr/bin/ruby
 # frozen_string_literal: true
 
 require 'redis'
diff --git a/bin/correct_duplicate_addrs b/bin/correct_duplicate_addrs
old mode 100644
new mode 100755
index 9d5550a91363fd50edfb448f7fcf36fa0e57dbc5..3911ef7cb7f1740df3ea1f51688ce163005ed537
--- a/bin/correct_duplicate_addrs
+++ b/bin/correct_duplicate_addrs
@@ -1,3 +1,4 @@
+#!/usr/bin/ruby
 # frozen_string_literal: true
 
 # This is meant to be run with the output of detect_duplicate_addrs on stdin
diff --git a/bin/detect_duplicate_addrs b/bin/detect_duplicate_addrs
index 309ae1e7193e95c74ab5acdfa97b698b30cc8b7e..c68e5e5731cb8102d36974dbf2b61c9e09e247ae 100755
--- a/bin/detect_duplicate_addrs
+++ b/bin/detect_duplicate_addrs
@@ -1,3 +1,4 @@
+#!/usr/bin/ruby
 # frozen_string_literal: true
 
 require 'redis'
diff --git a/bin/reassert_electrum_notification b/bin/reassert_electrum_notification
old mode 100644
new mode 100755
index 83bc1d2705ae660c24be87f5c91b84d8cf620962..af398eb8d4b4b6797732bf72fea971e6dacdb285
--- a/bin/reassert_electrum_notification
+++ b/bin/reassert_electrum_notification
@@ -1,3 +1,4 @@
+#!/usr/bin/ruby
 # frozen_string_literal: true
 
 require 'redis'