From b9773759c48024603903703eb891b2850e5f95a9 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Fri, 27 Nov 2009 17:44:50 +0100
Subject: D'oh

---
 src/pattern_sim.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pattern_sim.c b/src/pattern_sim.c
index f449b9c1..3f3d93ea 100644
--- a/src/pattern_sim.c
+++ b/src/pattern_sim.c
@@ -209,7 +209,7 @@ int main(int argc, char *argv[])
 			image.orientation = read_quaternion();
 		}
 
-		if ( quaternion_valid(image.orientation) ) {
+		if ( !quaternion_valid(image.orientation) ) {
 			ERROR("Orientation modulus is not zero!\n");
 			return 1;
 		}
-- 
cgit v1.2.3