diff --git a/gemfiles/rails-4.0.gemfile b/gemfiles/rails-4.0.gemfile
index bf10bce..5506868 100644
--- a/gemfiles/rails-4.0.gemfile
+++ b/gemfiles/rails-4.0.gemfile
@@ -1,3 +1,3 @@
-eval File.read(File.expand_path("common.gemfile", __dir__))
+eval_gemfile "common.gemfile"
 
 gem "activemodel", "~> 4.0.0"
diff --git a/gemfiles/rails-4.1.gemfile b/gemfiles/rails-4.1.gemfile
index d647ffe..0c70485 100644
--- a/gemfiles/rails-4.1.gemfile
+++ b/gemfiles/rails-4.1.gemfile
@@ -1,3 +1,3 @@
-eval File.read(File.expand_path("common.gemfile", __dir__))
+eval_gemfile "common.gemfile"
 
 gem "activemodel", "~> 4.1.0"
diff --git a/gemfiles/rails-4.2.gemfile b/gemfiles/rails-4.2.gemfile
index 213f1bf..0be641a 100644
--- a/gemfiles/rails-4.2.gemfile
+++ b/gemfiles/rails-4.2.gemfile
@@ -1,3 +1,3 @@
-eval File.read(File.expand_path("common.gemfile", __dir__))
+eval_gemfile "common.gemfile"
 
 gem "activemodel", "~> 4.2.0"
diff --git a/gemfiles/rails-5.0.gemfile b/gemfiles/rails-5.0.gemfile
index e4a532a..8373268 100644
--- a/gemfiles/rails-5.0.gemfile
+++ b/gemfiles/rails-5.0.gemfile
@@ -1,3 +1,3 @@
-eval File.read(File.expand_path("common.gemfile", __dir__))
+eval_gemfile "common.gemfile"
 
 gem "activemodel", "~> 5.0.0"
diff --git a/gemfiles/rails-5.1.gemfile b/gemfiles/rails-5.1.gemfile
index b48c764..ea1874f 100644
--- a/gemfiles/rails-5.1.gemfile
+++ b/gemfiles/rails-5.1.gemfile
@@ -1,3 +1,3 @@
-eval File.read(File.expand_path("common.gemfile", __dir__))
+eval_gemfile "common.gemfile"
 
 gem "activemodel", "~> 5.1.0"
diff --git a/gemfiles/rails-5.2.gemfile b/gemfiles/rails-5.2.gemfile
index cd36f86..b8f8b97 100644
--- a/gemfiles/rails-5.2.gemfile
+++ b/gemfiles/rails-5.2.gemfile
@@ -1,3 +1,3 @@
-eval File.read(File.expand_path("common.gemfile", __dir__))
+eval_gemfile "common.gemfile"
 
 gem "activemodel", "~> 5.2.0"
diff --git a/gemfiles/rails-head.gemfile b/gemfiles/rails-head.gemfile
index aacce97..b2c601f 100644
--- a/gemfiles/rails-head.gemfile
+++ b/gemfiles/rails-head.gemfile
@@ -1,3 +1,3 @@
-eval File.read(File.expand_path("common.gemfile", __dir__))
+eval_gemfile "common.gemfile"
 
 gem "activemodel", github: "rails/rails"