diff --git a/src/term.c b/src/term.c
index 1991342..4d30ee1 100644
--- a/src/term.c
+++ b/src/term.c
@@ -7494,7 +7494,7 @@
 	*r = ansi_table[nr][0];
 	*g = ansi_table[nr][1];
 	*b = ansi_table[nr][2];
-	*ansi_idx = nr;
+	*ansi_idx = nr + 1;
     }
     else
     {