diff --git a/tests/spec/arb_texture_buffer_object/subdata-sync.c b/tests/spec/arb_texture_buffer_object/subdata-sync.c
index 636d8fcdd..143b6ff25 100644
--- a/tests/spec/arb_texture_buffer_object/subdata-sync.c
+++ b/tests/spec/arb_texture_buffer_object/subdata-sync.c
@@ -79,7 +79,28 @@ piglit_display(void)
 	glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA8, bo);
 
 	piglit_draw_rect(-1, -1, 1, 2);
+
+	glBufferData(GL_TEXTURE_BUFFER, 4096, NULL, GL_STREAM_DRAW);//or directly glInvalidateBufferData(bo);
 	glBufferSubData(GL_TEXTURE_BUFFER, 0, sizeof(b_rgba8), b_rgba8);
+
+	/* According to EXT_texture_buffer_object, Issue (5):
+	 * "(5) What happens if a buffer object is deleted or respecified when bound
+     *         to a buffer texture?
+     *
+     *       RESOLVED: BufferData is allowed to be used to update a buffer object that
+     *       has already been bound to a texture with TexBuffer. The update to the data
+     *       is not guaranteed to affect the texture until next time it is bound to a
+     *       texture image unit.  When DeleteBuffers is called, any buffer that is
+     *       bound to a texture is removed from the names array, but remains as long as
+     *       it is bound to a texture.  The buffer is fully removed when the texture
+     *       unbinds it or when the texture buffer object is deleted."
+	 *
+	 * We need to rebound buffer object to the texture with TexBuffer to be sure
+	 * that our data update affects the texture
+	 */
+	glBindTexture(GL_TEXTURE_BUFFER, tex);
+	glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA8, bo);
+
 	piglit_draw_rect(0, -1, 1, 2);
 
 	pass = pass && piglit_probe_rect_rgba(0, 0,