diff --git a/src/fader.c b/src/fader.c
index 6723aec..8c42007 100644
--- a/src/fader.c
+++ b/src/fader.c
@@ -89,7 +89,7 @@ void fader_set_fadestep(struct fader_ctx *ctx, uint8_t newFadestep)
  * \param target   The target value that should be reached.
  * \param changed  Output value which is set to 1 if cur was changed.
  */
-void fade_colour(struct fader_ctx *ctx, float *cur, const float *target, int *changed)
+void fade_colour(struct fader_ctx *ctx, float *cur, const float *target, uint8_t *changed)
 {
 	float diff;
 	if(*cur > *target) {