diff --git a/src/add-ons/screen_savers/nebula/DrawStars.c b/src/add-ons/screen_savers/nebula/DrawStars.c
index 25cd5d82d1..26fc277572 100644
--- a/src/add-ons/screen_savers/nebula/DrawStars.c
+++ b/src/add-ons/screen_savers/nebula/DrawStars.c
@@ -1,68 +1,63 @@
 // Hand-translated from x86 assembly.
 
-/* this function needs a definition from outside (the width of the bitmap) */
-
-// #define STAR_WIDTH 320
-// #define STAR_FUNCTION draw_stars320
-
 /* draw a star (5 pixels) */
-void draw_stars(int STAR_WIDTH, char* dstParam, char incParam)
+void draw_stars(int star_width, char* dstParam, char incParam)
 {
 	unsigned char* dst;
 	unsigned char inc;
 	dst = (unsigned char*)dstParam;
 	inc = (unsigned char)incParam;
 
-	dst[STAR_WIDTH] += inc;
-	if (dst[STAR_WIDTH] < inc) {
+	dst[star_width] += inc;
+	if (dst[star_width] < inc) {
 		// Overflowed.
-		dst[STAR_WIDTH] = 255;
+		dst[star_width] = 255;
 	}
 
 	inc >>= 1;
 	unsigned char al;
 	al = *dst;
 	unsigned char cl;
-	cl = dst[STAR_WIDTH - 1];
+	cl = dst[star_width - 1];
 	al += inc;
 	if (al >= inc) {
 		cl += inc;
 		if (cl < inc) {
 			*dst = 255;
-			dst[STAR_WIDTH - 1] = 255;
+			dst[star_width - 1] = 255;
 		} else {
 			*dst = al;
-			dst[STAR_WIDTH - 1] = cl;
+			dst[star_width - 1] = cl;
 		}
 	} else {
 		cl += inc;
 		if (cl < inc) {
 			*dst = 255;
-			dst[STAR_WIDTH - 1] = 255;
+			dst[star_width - 1] = 255;
 		} else {
 			*dst = 255;
-			dst[STAR_WIDTH - 1] = cl;
+			dst[star_width - 1] = cl;
 		}
 	}
-	al = dst[STAR_WIDTH * 2];
-	cl = dst[STAR_WIDTH + 1];
+	al = dst[star_width * 2];
+	cl = dst[star_width + 1];
 	al += inc;
 	if (al < inc) {
 		cl += inc;
 		if (cl >= inc) {
-			dst[STAR_WIDTH * 2] = 255;
-			dst[STAR_WIDTH + 1] = cl;
+			dst[star_width * 2] = 255;
+			dst[star_width + 1] = cl;
 			return;
 		}
 	} else {
 		cl += inc;
 		if (cl >= inc) {
-			dst[STAR_WIDTH * 2] = al;
-			dst[STAR_WIDTH + 1] = cl;
+			dst[star_width * 2] = al;
+			dst[star_width + 1] = cl;
 			return;
 		}
 	}
 
-	dst[STAR_WIDTH * 2] = 255;
-	dst[STAR_WIDTH + 1] = 255;
+	dst[star_width * 2] = 255;
+	dst[star_width + 1] = 255;
 }