diff --git a/lib/paperclip.rb b/lib/paperclip.rb
index c614fff56..d44db3ce3 100644
--- a/lib/paperclip.rb
+++ b/lib/paperclip.rb
@@ -98,6 +98,7 @@ def self.options
       swallow_stderr: true,
       use_exif_orientation: true,
       whiny: true,
+      is_windows: Gem.win_platform?
     }
   end
 
diff --git a/lib/paperclip/geometry_detector_factory.rb b/lib/paperclip/geometry_detector_factory.rb
index a6e5282d8..9768e5a82 100644
--- a/lib/paperclip/geometry_detector_factory.rb
+++ b/lib/paperclip/geometry_detector_factory.rb
@@ -17,7 +17,7 @@ def geometry_string
         orientation = Paperclip.options[:use_exif_orientation] ?
           "%[exif:orientation]" : "1"
         Paperclip.run(
-          Gem.win_platform? ? "magick identify" : "identify",
+          Paperclip.options[:is_windows] ? "magick identify" : "identify",
           "-format '%wx%h,#{orientation}' :file", {
             :file => "#{path}[0]"
           }, {
diff --git a/lib/paperclip/processor.rb b/lib/paperclip/processor.rb
index 0bf6fe1e2..97283c5e0 100644
--- a/lib/paperclip/processor.rb
+++ b/lib/paperclip/processor.rb
@@ -38,7 +38,7 @@ def self.make file, options = {}, attachment = nil
     # See Paperclip.run for the available options.
     def convert(arguments = "", local_options = {})
       Paperclip.run(
-        Gem.win_platform ? "magick convert" : "convert",
+        Paperclip.options[:is_windows] ? "magick convert" : "convert",
         arguments,
         local_options,
       )
@@ -48,7 +48,7 @@ def convert(arguments = "", local_options = {})
     # See Paperclip.run for the available options.
     def identify(arguments = "", local_options = {})
       Paperclip.run(
-        Gem.win_platform? ? "magick identify" : "identify",
+        Paperclip.options[:is_windows] ? "magick identify" : "identify",
         arguments,
         local_options,
       )