diff --git a/unix/gtkwin.c b/unix/gtkwin.c
index f49f92af..94ba4069 100644
--- a/unix/gtkwin.c
+++ b/unix/gtkwin.c
@@ -3255,6 +3255,9 @@ void do_text_internal(Context ctx, int x, int y, wchar_t *text, int len,
     } else
 	ncombining = 1;
 
+    if (monochrome)
+        truecolour.fg = truecolour.bg = optionalrgb_none;
+
     nfg = ((monochrome ? ATTR_DEFFG : (attr & ATTR_FGMASK)) >> ATTR_FGSHIFT);
     nbg = ((monochrome ? ATTR_DEFBG : (attr & ATTR_BGMASK)) >> ATTR_BGSHIFT);
     if (!!(attr & ATTR_REVERSE) ^ (monochrome && (attr & TATTR_ACTCURS))) {
diff --git a/windows/window.c b/windows/window.c
index 452eb771..79738ff9 100644
--- a/windows/window.c
+++ b/windows/window.c
@@ -3522,12 +3522,12 @@ void do_text_internal(Context ctx, int x, int y, wchar_t *text, int len,
 	if (nbg < 16) nbg |= 8;
 	else if (nbg >= 256) nbg |= 1;
     }
-    if (truecolour.fg.enabled)
+    if (!pal && truecolour.fg.enabled)
 	fg = RGB(truecolour.fg.r, truecolour.fg.g, truecolour.fg.b);
     else
 	fg = colours[nfg];
 
-    if (truecolour.bg.enabled)
+    if (!pal && truecolour.bg.enabled)
 	bg = RGB(truecolour.bg.r, truecolour.bg.g, truecolour.bg.b);
     else
 	bg = colours[nbg];