diff --git a/packages/gettext_tiny.rb b/packages/gettext_tiny.rb
index 83ded445a..7566834cc 100644
--- a/packages/gettext_tiny.rb
+++ b/packages/gettext_tiny.rb
@@ -17,9 +17,7 @@ class Gettext_tiny < Package
      x86_64: '9435867e7adfa4f9906a89de80288cc59d014ee7dab19ef764ce18c2a7ad7fcd'
   })
 
-  def self.preinstall
-    abort 'gettext already installed. gettext_tiny conflicts with gettext.'.lightred if File.exist? "#{CREW_PREFIX}/bin/msgcomm"
-  end
+  conflicts_with 'gettext'
 
   def self.build
     system 'make', 'LIBINTL=NONE'
diff --git a/packages/gvim.rb b/packages/gvim.rb
index 261e575cb..b57c4d280 100644
--- a/packages/gvim.rb
+++ b/packages/gvim.rb
@@ -38,10 +38,7 @@ class Gvim < Autotools
 
   ignore_updater
 
-  def self.preflight
-    vim = `which #{CREW_PREFIX}/bin/vim 2> /dev/null`.chomp
-    abort "vim version #{version} already installed.".lightgreen unless vim.to_s == ''
-  end
+  conflicts_with 'vim'
 
   def self.patch
     # set the system-wide vimrc path
diff --git a/packages/vim.rb b/packages/vim.rb
index 7d698c726..aa90660c3 100644
--- a/packages/vim.rb
+++ b/packages/vim.rb
@@ -27,10 +27,7 @@ class Vim < Autotools
 
   ignore_updater
 
-  def self.preflight
-    gvim = `which #{CREW_PREFIX}/bin/gvim 2> /dev/null`.chomp
-    abort "gvim version #{version} already installed.".lightgreen unless gvim.to_s == ''
-  end
+  conflicts_with 'gvim'
 
   def self.patch
     # set the system-wide vimrc path