diff --git a/language.version b/language.version
index f119c964c..7cd4e6e20 100644
--- a/language.version
+++ b/language.version
@@ -1,3 +1,3 @@
 [default]
-SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r646 \cu(Mon 28 Nov 17:11:57 CET 2022)\c-";
-SWWM_SHORTVER="\cw1.3pre r646 \cu(2022-11-28 17:11:57)\c-";
+SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r647 \cu(Mon 28 Nov 17:54:45 CET 2022)\c-";
+SWWM_SHORTVER="\cw1.3pre r647 \cu(2022-11-28 17:54:45)\c-";
diff --git a/zscript/utility/swwm_utility.zsc b/zscript/utility/swwm_utility.zsc
index 93fda41e1..8ea1ea4b0 100644
--- a/zscript/utility/swwm_utility.zsc
+++ b/zscript/utility/swwm_utility.zsc
@@ -253,7 +253,7 @@ Class SWWMUtility
 	// thanks zscript
 	static clearscope double fract( double a )
 	{
-		return (a<0)?(a+floor(a)):(a-floor(a));
+		return a-floor(a);
 	}
 
 	static clearscope double lerp( double a, double b, double theta )