diff --git a/src/terminal.c b/src/terminal.c
index 01cabf0..c7dc23f 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -2433,8 +2433,8 @@
     if (color->ansi_index != VTERM_ANSI_INDEX_NONE)
     {
 	/* First 16 colors and default: use the ANSI index, because these
-	 * colors can be redefined. */
-	if (t_colors >= 16)
+	 * colors can be redefined, we use the RGB values. */
+	if (t_colors > 256)
 	    return color->ansi_index;
 	switch (color->ansi_index)
 	{
@@ -3604,6 +3604,7 @@
     for (; index < 16; index++)
     {
 	VTermColor	color;
+
 	color.red = (unsigned)(rgb[index] >> 16);
 	color.green = (unsigned)(rgb[index] >> 8) & 255;
 	color.blue = (unsigned)rgb[index] & 255;