diff --git a/lib/RefreshCS b/lib/RefreshCS
index 11d56717..fcb16a61 160000
--- a/lib/RefreshCS
+++ b/lib/RefreshCS
@@ -1 +1 @@
-Subproject commit 11d5671762bc999663672959568399b8e564420f
+Subproject commit fcb16a6121f556b2aebfbb7e72b71e94041dc1d1
diff --git a/src/Graphics/CommandBuffer.cs b/src/Graphics/CommandBuffer.cs
index 0ebd76b1..a80a1703 100644
--- a/src/Graphics/CommandBuffer.cs
+++ b/src/Graphics/CommandBuffer.cs
@@ -79,7 +79,7 @@ namespace MoonWorks.Graphics
                     Device.Handle,
                     Handle,
                     (IntPtr) ptr,
-                    (uint) uniforms.Length
+                    (uint) (uniforms.Length * Marshal.SizeOf<T>())
                 );
             }
         }
@@ -138,7 +138,7 @@ namespace MoonWorks.Graphics
                     Device.Handle,
                     Handle,
                     (IntPtr) ptr,
-                    (uint) uniforms.Length
+                    (uint) (uniforms.Length * Marshal.SizeOf<T>())
                 );
             }
         }
@@ -153,7 +153,7 @@ namespace MoonWorks.Graphics
                     Device.Handle,
                     Handle,
                     (IntPtr) ptr,
-                    (uint) uniforms.Length
+                    (uint) (uniforms.Length * Marshal.SizeOf<T>())
                 );
             }
         }