diff --git a/src/jes/gui/font.d b/src/jes/gui/font.d
index a72b5d0..3731701 100644
--- a/src/jes/gui/font.d
+++ b/src/jes/gui/font.d
@@ -74,7 +74,7 @@ class Font
                 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.ptr, data.length);
+            m_buffer.set_buffer_data(GL_ARRAY_BUFFER, GL_STATIC_DRAW, data.ptr, data.length * GLfloat.sizeof);
 
             glEnableVertexAttribArray(0);
             glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, null);