diff --git a/src/g_level.cpp b/src/g_level.cpp
index d5a9e9489..5997e489e 100644
--- a/src/g_level.cpp
+++ b/src/g_level.cpp
@@ -106,17 +106,17 @@ void G_VerifySkill();
 
 CUSTOM_CVAR(Bool, gl_brightfog, false, CVAR_ARCHIVE | CVAR_NOINITCALL)
 {
-	if (level.info->brightfog == -1) level.brightfog = self;
+	if (level.info == nullptr || level.info->brightfog == -1) level.brightfog = self;
 }
 
 CUSTOM_CVAR(Bool, gl_lightadditivesurfaces, false, CVAR_ARCHIVE | CVAR_NOINITCALL)
 {
-	if (level.info->lightadditivesurfaces == -1) level.lightadditivesurfaces = self;
+	if (level.info == nullptr || level.info->lightadditivesurfaces == -1) level.lightadditivesurfaces = self;
 }
 
 CUSTOM_CVAR(Bool, gl_notexturefill, false, CVAR_NOINITCALL)
 {
-	if (level.info->notexturefill == -1) level.notexturefill = self;
+	if (level.info == nullptr || level.info->notexturefill == -1) level.notexturefill = self;
 }
 
 CUSTOM_CVAR(Int, gl_lightmode, 3, CVAR_ARCHIVE | CVAR_NOINITCALL)