1 files changed, 1 insertions, 1 deletions
diff --git a/roi.c b/roi.c
index 0b2e372..31b6eb0 100644
--- a/roi.c
+++ b/roi.c
@@ -95,7 +95,7 @@ mark_matching_pixels(struct roi *roi, GdkPixbuf *image)
 	for (y = 0; y < height; ++y, row += stride) {
 		for (x = 0, p = row; x < width; ++x, p += nch) {
 			gboolean H = TRUE;
-			for (i = 0; i < 3; ++i) {
+			for (i = 0; i < 3 && H; ++i) {
 				if (!(p[i] >= roi->interval[i].min &&
 				      p[i] <= roi->interval[i].max))
 					H = FALSE;