diff --git a/src/pregmod/incubatorReport.tw b/src/pregmod/incubatorReport.tw
index 020641b3c70db6e548deae080cd129959f2111ce..85bba67ef2a2074c9adb9aaf209777abec257936 100644
--- a/src/pregmod/incubatorReport.tw
+++ b/src/pregmod/incubatorReport.tw
@@ -419,7 +419,7 @@
 						<</if>>
 						<<if $tanks[$i].hips < 2 && random(1,100) > 80>>
 							The excess estrogen-laced growth hormones @@.green;cause her hips to widen for childbirth.@@
-							<<set $tanks[$i].hips+ +>>
+							<<set $tanks[$i].hips++>>
 						<</if>>
 						<<if $tanks[$i].butt < 6 && random(1,100) > 70>>
 							The excess estrogen-laced growth hormones @@.green;cause her rear to grow fatter.@@