diff --git a/language.version b/language.version
index 49490e555..0bd51922b 100644
--- a/language.version
+++ b/language.version
@@ -1,2 +1,2 @@
 [default]
-SWWM_MODVER="\chSWWM \cwGZ\c- r410 (Sun 28 Jun 20:37:56 CEST 2020)";
+SWWM_MODVER="\chSWWM \cwGZ\c- r411 (Mon 29 Jun 08:49:45 CEST 2020)";
diff --git a/zscript/swwm_common.zsc b/zscript/swwm_common.zsc
index 758d6b1b9..ac6afa584 100644
--- a/zscript/swwm_common.zsc
+++ b/zscript/swwm_common.zsc
@@ -1862,6 +1862,9 @@ Class InvisibleSplasher : Actor
 	{
 		Mass 100;
 		VSpeed -2;
+		Radius 2;
+		Radius 2;
+		+NOBLOCKMAP;	// needed to prevent infinite loops with some 3D floor water (yes, you read that right)
 	}
 	States
 	{