diff --git a/application/thermal_print.py b/application/thermal_print.py
index e0f2943..8eebf38 100644
--- a/application/thermal_print.py
+++ b/application/thermal_print.py
@@ -97,7 +97,7 @@ class ThermalPrinter():
 		# words = ("gugu,gaga")
 		r = RandomWord()
 		words = r.random_words(10, include_parts_of_speech=["nouns", "verbs", "adjectives"])
-		w = WordSearch(words, 32, 32)
+		w = WordSearch(','.join(words), 32, 32)
 
 		for x in w.grid:
 			self.p.set(align="center")