diff --git a/sc2/src/sc2code/planets/genorz.c b/sc2/src/sc2code/planets/genorz.c
index f0086573c..f7a333b10 100644
--- a/sc2/src/sc2code/planets/genorz.c
+++ b/sc2/src/sc2code/planets/genorz.c
@@ -176,7 +176,7 @@ GenerateAndrosynth (BYTE control)
 void
 GenerateOrz (BYTE control)
 {
-	if (CurStarDescPtr->Index == ANDROSYNTH_DEFINED)
+	if (CurStarDescPtr && CurStarDescPtr->Index == ANDROSYNTH_DEFINED)
 	{
 		GenerateAndrosynth (control);
 		return;
diff --git a/sc2/src/sc2code/planets/gensyr.c b/sc2/src/sc2code/planets/gensyr.c
index 68be4642b..b1cfd1ee5 100644
--- a/sc2/src/sc2code/planets/gensyr.c
+++ b/sc2/src/sc2code/planets/gensyr.c
@@ -63,7 +63,7 @@ GenerateTrap (BYTE control)
 void
 GenerateSyreen (BYTE control)
 {
-	if (CurStarDescPtr->Index == MYCON_TRAP_DEFINED)
+	if (CurStarDescPtr && CurStarDescPtr->Index == MYCON_TRAP_DEFINED)
 	{
 		GenerateTrap (control);
 		return;
diff --git a/sc2/src/sc2code/planets/genzoq.c b/sc2/src/sc2code/planets/genzoq.c
index 62506fafb..35a79872b 100644
--- a/sc2/src/sc2code/planets/genzoq.c
+++ b/sc2/src/sc2code/planets/genzoq.c
@@ -83,7 +83,7 @@ GenerateScout (BYTE control)
 void
 GenerateZoqFotPik (BYTE control)
 {
-	if (CurStarDescPtr->Index == ZOQ_SCOUT_DEFINED)
+	if (CurStarDescPtr && CurStarDescPtr->Index == ZOQ_SCOUT_DEFINED)
 	{
 		GenerateScout (control);
 		return;