diff --git a/sc2/src/uqm/gendef.c b/sc2/src/uqm/gendef.c
index ccc0cde28..589b0700d 100644
--- a/sc2/src/uqm/gendef.c
+++ b/sc2/src/uqm/gendef.c
@@ -58,9 +58,10 @@ extern struct GeneratorBase cxxDefaultPlanetGen;
 
 
 const GenerateFunctions *
-getGenerateFunctions (STAR_DESC *const star, void **sup )
+getGenerateFunctions (STAR_DESC *const star, void **sup, const char **supArg )
 {
 	*sup= star->supplement;
+	*supArg= 0;
 
 	switch (star->Index)
 	{
@@ -95,6 +96,7 @@ getGenerateFunctions (STAR_DESC *const star, void **sup )
 			return &generateTrapFunctions;
 		case BURVIXESE_DEFINED:
 			return &generateBurvixeseFunctions;
+			abort();
 		case DRUUGE_DEFINED:
 			return &generateDruugeFunctions;
 		case BOMB_DEFINED:
diff --git a/sc2/src/uqm/gendef.h b/sc2/src/uqm/gendef.h
index 52e61ce9f..3d1d099c7 100644
--- a/sc2/src/uqm/gendef.h
+++ b/sc2/src/uqm/gendef.h
@@ -8,7 +8,7 @@
 extern "C" {
 #endif
 
-const GenerateFunctions *getGenerateFunctions (STAR_DESC *star, void **sup);
+const GenerateFunctions *getGenerateFunctions (STAR_DESC *star, void **sup, const char **arg );
 
 enum
 {
diff --git a/sc2/src/uqm/planets/planets.h b/sc2/src/uqm/planets/planets.h
index 462039fda..45ad9b926 100644
--- a/sc2/src/uqm/planets/planets.h
+++ b/sc2/src/uqm/planets/planets.h
@@ -143,6 +143,7 @@ struct star_desc
 	BYTE Postfix;
 
 	void *supplement; // The CXX builder's pointer gets put here.
+	void *supArg; // Extra info for the CXX builder goes here.
 };
 
 struct node_info
@@ -269,6 +270,7 @@ struct solarsys_state
 	// Since everything else probably ignores it... we can probably
 	// avoid setting it to `nullptr`, for now...
 	void *genSupplement;
+	const char *supArgument;
 };
 
 extern SOLARSYS_STATE *pSolarSysState;
diff --git a/sc2/src/uqm/planets/solarsys.c b/sc2/src/uqm/planets/solarsys.c
index 9118db4f0..c02accd2f 100644
--- a/sc2/src/uqm/planets/solarsys.c
+++ b/sc2/src/uqm/planets/solarsys.c
@@ -1735,7 +1735,8 @@ ExploreSolarSys (void)
 
 	memset (pSolarSysState, 0, sizeof (*pSolarSysState));
 
-	SolarSysState.genFuncs = getGenerateFunctions (CurStarDescPtr, &SolarSysState.genSupplement);
+	SolarSysState.genFuncs = getGenerateFunctions (CurStarDescPtr, &SolarSysState.genSupplement,
+			&SolarSysState.supArgument);
 
 	InitSolarSys ();
 	SetMenuSounds (MENU_SOUND_NONE, MENU_SOUND_NONE);
diff --git a/sc2/src/uqm/uqmdebug.c b/sc2/src/uqm/uqmdebug.c
index 4fc540dd6..7dc8fba84 100644
--- a/sc2/src/uqm/uqmdebug.c
+++ b/sc2/src/uqm/uqmdebug.c
@@ -645,7 +645,8 @@ starRecurse (STAR_DESC *star, void *arg)
 	SolarSysState.SunDesc[0].location.x = 0;
 	SolarSysState.SunDesc[0].location.y = 0;
 	//SolarSysState.SunDesc[0].radius = MIN_ZOOM_RADIUS;
-	SolarSysState.genFuncs = getGenerateFunctions (star, &SolarSysState.genSupplement);
+	SolarSysState.genFuncs = getGenerateFunctions (star, &SolarSysState.genSupplement,
+			&SolarSysState.supArgument);
 
 	pSolarSysState = &SolarSysState;
 	(*SolarSysState.genFuncs->generatePlanets) (&SolarSysState);