diff --git a/source/glest_game/type_instances/unit.cpp b/source/glest_game/type_instances/unit.cpp
index 13d5e2de..b47a9f16 100644
--- a/source/glest_game/type_instances/unit.cpp
+++ b/source/glest_game/type_instances/unit.cpp
@@ -5223,6 +5223,9 @@ Checksum Unit::getCRC() {
 	//Vec2i currentPathFinderDesiredFinalPos;
 
 	crcForUnit.addInt(random.getLastNumber());
+	if(this->random.getLastCaller() != "") {
+		crcForUnit.addString(this->random.getLastCaller());
+	}
 
 	if(consoleDebug) printf("#16 Unit: %d CRC: %u\n",id,crcForUnit.getSum());
 
diff --git a/source/shared_lib/include/util/randomgen.h b/source/shared_lib/include/util/randomgen.h
index 848e36c3..40123bd4 100644
--- a/source/shared_lib/include/util/randomgen.h
+++ b/source/shared_lib/include/util/randomgen.h
@@ -46,8 +46,8 @@ public:
 	void setLastNumber(int value) { lastNumber = value; }
 
 	std::string getLastCaller() const;
-	//void clearLastCaller() { lastCaller.clear(); }
-	void clearLastCaller() {  }
+	void clearLastCaller() { lastCaller.clear(); }
+	//void clearLastCaller() {  }
 };
 
 }}//end namespace
diff --git a/source/shared_lib/sources/util/randomgen.cpp b/source/shared_lib/sources/util/randomgen.cpp
index 1e6eb825..31db2f54 100644
--- a/source/shared_lib/sources/util/randomgen.cpp
+++ b/source/shared_lib/sources/util/randomgen.cpp
@@ -40,6 +40,7 @@ void RandomGen::init(int seed){
 }
 
 int RandomGen::rand(string lastCaller) {
+	this->lastCaller.push_back(lastCaller);
 	this->lastNumber = (a*lastNumber + b) % m;
 	return lastNumber;
 }