diff --git a/src/gltk/buffer.d b/src/gltk/buffer.d
index 3b36182..812e6da 100644
--- a/src/gltk/buffer.d
+++ b/src/gltk/buffer.d
@@ -7,7 +7,7 @@ class Buffer
 
     private GLenum m_target;
 
-    this()
+    this(GLenum target)
     {
         m_id = 0u;
         glGenBuffers(1, &m_id);
@@ -15,6 +15,7 @@ class Buffer
         {
             throw new Exception("Failed to allocate an OpenGL buffer");
         }
+        m_target = target;
     }
 
     ~this()
@@ -32,17 +33,15 @@ class Buffer
         return m_id;
     }
 
-    void set_buffer_data(GLenum target, GLenum usage, const void * ptr, size_t size)
+    void set_buffer_data(GLenum usage, const void * ptr, size_t size)
     {
-        m_target = target;
         bind();
-        glBufferData(target, size, ptr, usage);
+        glBufferData(m_target, size, ptr, usage);
     }
 
-    void set_buffer_data(T)(GLenum target, GLenum usage, T[] arr)
+    void set_buffer_data(T)(GLenum usage, T[] arr)
     {
-        m_target = target;
         bind();
-        glBufferData(target, arr.length * arr[0].sizeof, arr.ptr, usage);
+        glBufferData(m_target, arr.length * arr[0].sizeof, arr.ptr, usage);
     }
 }
diff --git a/src/jes/gui/font.d b/src/jes/gui/font.d
index dec8313..0635a14 100644
--- a/src/jes/gui/font.d
+++ b/src/jes/gui/font.d
@@ -67,14 +67,14 @@ class Font
             int top = cglyph.top;
             float s_max = cglyph.width / cast(float)rounded_width;
             float t_max = cglyph.height / cast(float)rounded_height;
-            m_buffer = new gltk.Buffer();
+            m_buffer = new gltk.Buffer(GL_ARRAY_BUFFER);
             GLfloat[] data = [
                 cast(GLfloat)left, cast(GLfloat)(top - cglyph.height),           0.0,   0.0,
                 cast(GLfloat)(left + cglyph.width), cast(GLfloat)(top - cglyph.height), s_max, 0.0,
                 cast(GLfloat)left, cast(GLfloat)top,                      0.0,   t_max,
                 cast(GLfloat)(left + cglyph.width), cast(GLfloat)top,            s_max, t_max,
             ];
-            m_buffer.set_buffer_data(GL_ARRAY_BUFFER, GL_STATIC_DRAW, data);
+            m_buffer.set_buffer_data(GL_STATIC_DRAW, data);
 
             glEnableVertexAttribArray(0);
             glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, null);