diff --git a/src/p_setup.c b/src/p_setup.c
index 88188c7db..becc21e84 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -7786,6 +7786,7 @@ static void P_ConvertBinaryThingTypes(void)
 		case 30442: // MT_RAINBOWDASHRING
 			mapthings[i].args[0] = mapthings[i].options & 13;
 			mapthings[i].args[1] = mapthings[i].extrainfo;
+			break;
 		case FLOOR_SLOPE_THING:
 		case CEILING_SLOPE_THING:
 			mapthings[i].args[0] = mapthings[i].extrainfo;