diff --git a/lib/mrsk/commands/builder/base.rb b/lib/mrsk/commands/builder/base.rb
index 56bb5c33..172d434b 100644
--- a/lib/mrsk/commands/builder/base.rb
+++ b/lib/mrsk/commands/builder/base.rb
@@ -8,7 +8,7 @@ class Mrsk::Commands::Builder::Base < Mrsk::Commands::Base
   end
 
   def build_args
-    argumentize "--build-args", args
+    argumentize "--build-arg", args
   end
 
   private
diff --git a/test/builder_command_test.rb b/test/builder_command_test.rb
index 77fac68d..a9c3082e 100644
--- a/test/builder_command_test.rb
+++ b/test/builder_command_test.rb
@@ -24,16 +24,16 @@ class BuilderCommandTest < ActiveSupport::TestCase
 
   test "build args" do
     builder = Mrsk::Commands::Builder.new(Mrsk::Configuration.new(@config.merge({ builder: { "args" => { "a" => 1, "b" => 2 } } })))
-    assert_equal [ "--build-args", "a=1", "--build-args", "b=2" ], builder.target.build_args
+    assert_equal [ "--build-arg", "a=1", "--build-arg", "b=2" ], builder.target.build_args
   end
 
   test "native push with build args" do
     builder = Mrsk::Commands::Builder.new(Mrsk::Configuration.new(@config.merge({ builder: { "multiarch" => false, "args" => { "a" => 1, "b" => 2 } } })))
-    assert_equal [ :docker, :build, "-t", "--build-args", "a=1", "--build-args", "b=2", "dhh/app:123", ".", "&&", :docker, :push, "dhh/app:123" ], builder.push
+    assert_equal [ :docker, :build, "-t", "--build-arg", "a=1", "--build-arg", "b=2", "dhh/app:123", ".", "&&", :docker, :push, "dhh/app:123" ], builder.push
   end
 
   test "multiarch push with build args" do
     builder = Mrsk::Commands::Builder.new(Mrsk::Configuration.new(@config.merge({ builder: { "args" => { "a" => 1, "b" => 2 } } })))
-    assert_equal [ :docker, :buildx, :build, "--push", "--platform linux/amd64,linux/arm64", "-t", "dhh/app:123", "--build-args", "a=1", "--build-args", "b=2", "." ], builder.push
+    assert_equal [ :docker, :buildx, :build, "--push", "--platform linux/amd64,linux/arm64", "-t", "dhh/app:123", "--build-arg", "a=1", "--build-arg", "b=2", "." ], builder.push
   end
 end