diff --git a/libs/pcg/include/psemek/pcg/blur.hpp b/libs/pcg/include/psemek/pcg/blur.hpp
index 47fde7c6..a82ff071 100644
--- a/libs/pcg/include/psemek/pcg/blur.hpp
+++ b/libs/pcg/include/psemek/pcg/blur.hpp
@@ -53,7 +53,7 @@ namespace psemek::pcg
 		return res;
 	}
 
-	template <typename T, typename To, typename From>
+	template <typename T>
 	gfx::basic_pixmap<T> blur(gfx::basic_pixmap<T> const & p, int size, float sigma, seamless_tag)
 	{
 		return blur(p, util::id, util::id, size, sigma, seamless);