diff --git a/rules.mak b/rules.mak
index 86e033d815..19f3d2c126 100644
--- a/rules.mak
+++ b/rules.mak
@@ -327,7 +327,7 @@ endef
 #     ../water/ice.mo-libs = -licemaker
 #     ../water/ice.mo-objs = ../water/ice1.o ../water/ice2.o
 #
-# Note that 'hot' didn't include 'season/' in the input, so 'summer.o' is not
+# Note that 'hot' didn't include 'water/' in the input, so 'steam.o' is not
 # included.
 #
 define unnest-vars