diff --git a/src/animations/dna.c b/src/animations/dna.c
index 806d93a..e927853 100644
--- a/src/animations/dna.c
+++ b/src/animations/dna.c
@@ -68,7 +68,7 @@ void dna(){
 
 	uint8_t sinpos = 0;
 
-	uint8_t direction = 1;
+	int8_t direction = 1;
 
 	clear_screen(0);