diff --git a/src/map/IMG/rgnfile.cpp b/src/map/IMG/rgnfile.cpp
index 812074f9..a2b6cef1 100644
--- a/src/map/IMG/rgnfile.cpp
+++ b/src/map/IMG/rgnfile.cpp
@@ -268,7 +268,7 @@ bool RGNFile::extPolyObjects(const RectC &rect, Handle &hdl,
 		br = br.united(c);
 		poly.points.append(QPointF(c.lon(), c.lat()));
 
-		BitStream bs(*this, hdl, len);
+		BitStream bs(*this, hdl, len - 1);
 		int lonSign, latSign;
 		if (!bs.sign(lonSign) || !bs.sign(latSign))
 			return false;
diff --git a/src/map/IMG/subfile.cpp b/src/map/IMG/subfile.cpp
index f6e9ae42..8b590b48 100644
--- a/src/map/IMG/subfile.cpp
+++ b/src/map/IMG/subfile.cpp
@@ -94,7 +94,6 @@ bool SubFile::readVUInt32(Handle &hdl, quint32 &val) const
 		val |= (((quint32)b) << (i * 8)) >> (8 - shift);
 
 	}
-	val--;
 
 	return true;
 }