diff --git a/src/portrait.c b/src/portrait.c
index 8bdea2ae..bf3506df 100644
--- a/src/portrait.c
+++ b/src/portrait.c
@@ -59,8 +59,8 @@ void portrait_render(Sprite *s_base, Sprite *s_face, Sprite *s_out) {
 
 	IntRect itc = sprite_denormalized_int_tex_coords(s_base);
 
-	uint tex_w = itc.w;
-	uint tex_h = itc.h;
+	uint tex_w = imax(itc.w, 1);
+	uint tex_h = imax(itc.h, 1);
 	uint spr_w = s_base->extent.w;
 	uint spr_h = s_base->extent.h;