diff --git a/src/nsterm.m b/src/nsterm.m
index 9e036aa1608..fbec816cccd 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -2290,24 +2290,19 @@ so some key presses (TAB) are swallowed by the system.  */
 
 /* Convert an index into the color table into an RGBA value.  Used in
    xdisp.c:extend_face_to_end_of_line when comparing faces and frame
-   color values.  No-op on non-gui frames.  */
+   color values.  */
 
 unsigned long
 ns_color_index_to_rgba(int idx, struct frame *f)
 {
-  if (FRAME_DISPLAY_INFO (f))
-    {
-      NSColor *col;
-      col = ns_lookup_indexed_color (idx, f);
+  NSColor *col;
+  col = ns_lookup_indexed_color (idx, f);
 
-      EmacsCGFloat r, g, b, a;
-      [col getRed: &r green: &g blue: &b alpha: &a];
+  EmacsCGFloat r, g, b, a;
+  [col getRed: &r green: &g blue: &b alpha: &a];
 
-      return ARGB_TO_ULONG((int)(a*255),
-                           (int)(r*255), (int)(g*255), (int)(b*255));
-    }
-  else
-    return idx;
+  return ARGB_TO_ULONG((int)(a*255),
+                       (int)(r*255), (int)(g*255), (int)(b*255));
 }
 
 void