diff --git a/source/tools/rmgen/clumpplacer.cpp b/source/tools/rmgen/clumpplacer.cpp
index 912fefdffc..4e26e75c76 100644
--- a/source/tools/rmgen/clumpplacer.cpp
+++ b/source/tools/rmgen/clumpplacer.cpp
@@ -4,13 +4,14 @@
 
 using namespace std;
 
-ClumpPlacer::ClumpPlacer(float size, float coherence, float smoothness, int x, int y)
+ClumpPlacer::ClumpPlacer(float size, float coherence, float smoothness, float failFraction, int x, int y)
 {
 	this->size = size;
 	this->coherence = coherence;
 	this->smoothness = smoothness;
 	this->x = x;
 	this->y = y;
+	this->failFraction = failFraction;
 }
 
 ClumpPlacer::~ClumpPlacer()
@@ -80,7 +81,7 @@ bool ClumpPlacer::place(class Map* m, Constraint* constr, std::vector<Point>& re
 		}
 	}
 
-	return failed > 0 ? false : true;
+	return failed > size * failFraction ? false : true;
 	
 	/*if(m->validT(x,y)) {
 		ret.push_back(Point(x,y));
diff --git a/source/tools/rmgen/clumpplacer.h b/source/tools/rmgen/clumpplacer.h
index 7e9018f6d1..4b0fe9285b 100644
--- a/source/tools/rmgen/clumpplacer.h
+++ b/source/tools/rmgen/clumpplacer.h
@@ -10,11 +10,12 @@ private:
 	float size;
 	float coherence;
 	float smoothness;
+	float failFraction;
 	int x, y;
 public:
 	virtual bool place(Map* m, Constraint* constr, std::vector<Point>& ret);
 
-	ClumpPlacer(float size, float coherence, float smoothness, int x, int y);
+	ClumpPlacer(float size, float coherence, float smoothness, float failFraction, int x, int y);
 	virtual ~ClumpPlacer();
 };
 
diff --git a/source/tools/rmgen/convert.cpp b/source/tools/rmgen/convert.cpp
index b059dbc2d2..53a849fc87 100644
--- a/source/tools/rmgen/convert.cpp
+++ b/source/tools/rmgen/convert.cpp
@@ -160,7 +160,7 @@ AreaPainter* ParseAreaPainter(JSContext* cx, jsval val) {
 
 AreaPlacer* ParseAreaPlacer(JSContext* cx, jsval val) {
 	int x, y, x1, y1, x2, y2, num, maxFail;
-	float size, coherence, smoothness;
+	float size, coherence, smoothness, failFraction;
 
 	switch(GetType(cx, val)) {
 		case TYPE_RECT_PLACER:
@@ -174,9 +174,10 @@ AreaPlacer* ParseAreaPlacer(JSContext* cx, jsval val) {
 			if(!GetFloatField(cx, val, "size", size)) return 0;
 			if(!GetFloatField(cx, val, "coherence", coherence)) return 0;
 			if(!GetFloatField(cx, val, "smoothness", smoothness)) return 0;
+			if(!GetFloatField(cx, val, "failFraction", failFraction)) return 0;
 			if(!GetIntField(cx, val, "x", x)) return 0;
 			if(!GetIntField(cx, val, "y", y)) return 0;
-			return new ClumpPlacer(size, coherence, smoothness, x, y);
+			return new ClumpPlacer(size, coherence, smoothness, failFraction, x, y);
 
 		default:
 			return 0;
diff --git a/source/tools/rmgen/rmgen.vcproj b/source/tools/rmgen/rmgen.vcproj
index 2889bd7aeb..cf0356db54 100644
--- a/source/tools/rmgen/rmgen.vcproj
+++ b/source/tools/rmgen/rmgen.vcproj
@@ -284,6 +284,12 @@
 			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
 			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}">
 		</Filter>
+		<File
+			RelativePath="..\..\..\binaries\data\mods\official\maps\random\andalucia.js">
+		</File>
+		<File
+			RelativePath="..\..\..\binaries\data\mods\official\maps\random\cantabrian_highlands.js">
+		</File>
 		<File
 			RelativePath="..\..\..\libraries\spidermonkey\lib\js32d.lib">
 		</File>