diff --git a/wadsrc/static/mapinfo/heretic.txt b/wadsrc/static/mapinfo/heretic.txt
index bdc68c62d4..f889a97185 100644
--- a/wadsrc/static/mapinfo/heretic.txt
+++ b/wadsrc/static/mapinfo/heretic.txt
@@ -1,4 +1,4 @@
-// MAPINFO for Heretic (Shareware and Retail)
+// MAPINFO for Heretic (Retail)
 include "mapinfo/common.txt"
 
 gameinfo
diff --git a/wadsrc/static/mapinfo/hereticshareware.txt b/wadsrc/static/mapinfo/hereticshareware.txt
new file mode 100644
index 0000000000..fe369f36ff
--- /dev/null
+++ b/wadsrc/static/mapinfo/hereticshareware.txt
@@ -0,0 +1,7 @@
+// MAPINFO for Heretic (Shareware)
+include "mapinfo/heretic.txt"
+
+gameinfo
+{
+	borderflat = "FLOOR04"
+}
\ No newline at end of file
diff --git a/wadsrc_extra/static/iwadinfo.txt b/wadsrc_extra/static/iwadinfo.txt
index 29230f5bef..a1c419d4e0 100644
--- a/wadsrc_extra/static/iwadinfo.txt
+++ b/wadsrc_extra/static/iwadinfo.txt
@@ -264,7 +264,7 @@ IWad
 	Name = "Heretic Shareware"
 	Game = "Heretic"
 	Config = "Heretic"
-	Mapinfo = "mapinfo/heretic.txt"
+	Mapinfo = "mapinfo/hereticshareware.txt"
 	Compatibility = "Shareware"
 	MustContain = "E1M1", "TITLE", "MUS_E1M1"
 	BannerColors = "fc fc 00", "a8 00 00"