diff --git a/termite.cc b/termite.cc
index c8449c6..fc85408 100644
--- a/termite.cc
+++ b/termite.cc
@@ -1188,7 +1188,7 @@ get_config_cairo_color(GKeyFile *config, const char *group, const char *key) {
 }
 
 static void load_theme(GtkWindow *window, VteTerminal *vte, GKeyFile *config, hint_info &hints) {
-    std::array<GdkRGBA, 255> palette;
+    std::array<GdkRGBA, 256> palette;
     char color_key[] = "color000";
 
     for (unsigned i = 0; i < palette.size(); i++) {