1 files changed, 1 insertions, 1 deletions
diff --git a/src/font.c b/src/font.c
index 92988a3..c351857 100644
--- a/src/font.c
+++ b/src/font.c
@@ -78,7 +78,7 @@ font_get_height(struct font *font)
 
 void
 font_render(struct font *font, png_const_colorp fg, png_const_colorp bg,
-		char ch, png_bytepp rows, int row, int col)
+		unsigned char ch, png_bytepp rows, int row, int col)
 {
 	size_t        y;
 	size_t        r;