diff --git a/src/cairo-rectangle.c b/src/cairo-rectangle.c
index 2d51d7b..f846343 100644
--- a/src/cairo-rectangle.c
+++ b/src/cairo-rectangle.c
@@ -213,8 +213,7 @@ _cairo_box_intersects_line_segment (const cairo_box_t *box, cairo_line_t *line)
 	    xlen = - xlen;
 	}
 
-	if ((t1 < 0 || t1 > xlen) &&
-	    (t2 < 0 || t2 > xlen))
+	if (t1 > xlen || t2 < 0)
 	    return FALSE;
     } else {
 	/* Fully vertical line -- check that X is in bounds */
@@ -232,8 +231,7 @@ _cairo_box_intersects_line_segment (const cairo_box_t *box, cairo_line_t *line)
 	    ylen = - ylen;
 	}
 
-	if ((t3 < 0 || t3 > ylen) &&
-	    (t4 < 0 || t4 > ylen))
+	if (t3 > ylen || t4 < 0)
 	    return FALSE;
     } else {
 	/* Fully horizontal line -- check Y */