diff --git a/src/gltk/program.d b/src/gltk/program.d
index 211226d..14d9879 100644
--- a/src/gltk/program.d
+++ b/src/gltk/program.d
@@ -26,6 +26,11 @@ class Program
         glAttachShader(m_id, shader.id);
     }
 
+    void bind_attrib_location(uint index, string name)
+    {
+        glBindAttribLocation(m_id, index, name.toStringz());
+    }
+
     void link() const
     {
         glLinkProgram(m_id);
diff --git a/src/jes/gui/package.d b/src/jes/gui/package.d
index bf67693..3ddd848 100644
--- a/src/jes/gui/package.d
+++ b/src/jes/gui/package.d
@@ -50,7 +50,7 @@ class Gui
             m_text_program = new gltk.Program();
             m_text_program.attach_shader(v_shader);
             m_text_program.attach_shader(f_shader);
-            glBindAttribLocation(m_text_program.id, 0, "coords");
+            m_text_program.bind_attrib_location(0u, "coords");
             m_text_program.link();
             m_viewport_size = m_text_program.get_uniform_location("viewport_size");
             m_texture = m_text_program.get_uniform_location("texture");