1 files changed, 3 insertions, 3 deletions
diff --git a/src/text.c b/src/text.c
index fedbd3f..995d10e 100644
--- a/src/text.c
+++ b/src/text.c
@@ -105,13 +105,13 @@ text_new(FILE *stream)
 }
 
 size_t
-text_get_width(struct text *text)
+text_get_width(const struct text *text)
 {
 	return text->width;
 }
 
 size_t
-text_get_height(struct text *text)
+text_get_height(const struct text *text)
 {
 	return text->height;
 }
@@ -129,7 +129,7 @@ text_set_height(struct text *text, size_t height)
 }
 
 void
-text_render(struct text *text, struct font *font, png_bytepp rows)
+text_render(const struct text *text, const struct font *font, png_bytepp rows)
 {
 	unsigned char *string_start;
 	unsigned char *string;