diff --git a/examples/3d.cr b/examples/3d.cr
index 8f8ecbb..6b25477 100644
--- a/examples/3d.cr
+++ b/examples/3d.cr
@@ -156,6 +156,5 @@ class ThreeDee < PF::Game
   end
 end
 
-# engine = ThreeDee.new(256, 240, 4)
-engine = ThreeDee.new(256 * 2, 240 * 2, 2)
+engine = ThreeDee.new(640, 480, 2)
 engine.run!
diff --git a/src/matrix.cr b/src/matrix.cr
index f1ada71..39a395f 100644
--- a/src/matrix.cr
+++ b/src/matrix.cr
@@ -14,11 +14,11 @@ module PF
     macro [](*args)
       # width and height are the isqrt of args.size
       {% if args.size == 4 %}
-        PF::Matrix(typeof({{*args}}), 4).new(2, 2, StaticArray[{{*args}}])
+        PF::Matrix(typeof({{args.splat}}), 4).new(2, 2, StaticArray[{{args.splat}}])
       {% elsif args.size == 9 %}
-        PF::Matrix(typeof({{*args}}), 9).new(3, 3, StaticArray[{{*args}}])
+        PF::Matrix(typeof({{args.splat}}), 9).new(3, 3, StaticArray[{{args.splat}}])
       {% elsif args.size == 16 %}
-        PF::Matrix(typeof({{*args}}), 16).new(4, 4, StaticArray[{{*args}}])
+        PF::Matrix(typeof({{args.splat}}), 16).new(4, 4, StaticArray[{{args.splat}}])
       {% else %}
         raise "Cannot determine width and height of matrix with {{ args.size }} elements, " \
               "please provide them explicitly Matrix(Int32, 16).new(4, 4, StaticArray[...])"
diff --git a/src/vector.cr b/src/vector.cr
index 7465dd7..f0a682c 100644
--- a/src/vector.cr
+++ b/src/vector.cr
@@ -8,7 +8,7 @@ module PF
     # PF::Vector[1, 2] # => PF::Vector2(Int32)(@x=1, @y=2)
     # ```
     macro [](*args)
-      PF::Vector{{args.size}}(typeof({{*args}})).new(
+      PF::Vector{{args.size}}(typeof({{args.splat}})).new(
         {% for arg in args %}
           {{ arg }},
         {% end %}