diff --git a/src/gl/compatibility/gl_20.cpp b/src/gl/compatibility/gl_20.cpp
index 367a627d25..c76f5adadf 100644
--- a/src/gl/compatibility/gl_20.cpp
+++ b/src/gl/compatibility/gl_20.cpp
@@ -438,7 +438,7 @@ bool gl_SetupLight(int group, Plane & p, ADynamicLight * light, FVector3 & nearP
 
 	if (radius <= 0.f) return false;
 	if (dist > radius) return false;
-	if (checkside && gl_lights_checkside && p.PointOnSide(lpos.X, lpos.Z, lpos.Y))
+	if (checkside && p.PointOnSide(lpos.X, lpos.Z, lpos.Y))
 	{
 		return false;
 	}
@@ -666,7 +666,7 @@ void GLFlat::DrawSubsectorLights(subsector_t * sub, int pass)
 		// we must do the side check here because gl_SetupLight needs the correct plane orientation
 		// which we don't have for Legacy-style 3D-floors
 		double planeh = plane.plane.ZatPoint(light);
-		if (gl_lights_checkside && ((planeh<light->Z() && ceiling) || (planeh>light->Z() && !ceiling)))
+		if (((planeh<light->Z() && ceiling) || (planeh>light->Z() && !ceiling)))
 		{
 			node = node->nextLight;
 			continue;
@@ -1003,4 +1003,4 @@ int LegacyDesaturation(F2DDrawer::RenderCommand &cmd)
 	auto &tbl = DesaturatedTranslationTable[cmd.mTranslation];
 	tbl.tables[desat] = newremap;
 	return newremap->GetUniqueIndex();
-}
\ No newline at end of file
+}
diff --git a/src/gl/dynlights/gl_dynlight1.cpp b/src/gl/dynlights/gl_dynlight1.cpp
index 88e9c2849b..554719009e 100644
--- a/src/gl/dynlights/gl_dynlight1.cpp
+++ b/src/gl/dynlights/gl_dynlight1.cpp
@@ -49,7 +49,6 @@
 //
 //==========================================================================
 
-CVAR (Bool, gl_lights_checkside, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG);
 CVAR (Bool, gl_light_sprites, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG);
 CVAR (Bool, gl_light_particles, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG);
 
@@ -69,7 +68,7 @@ bool gl_GetLight(int group, Plane & p, ADynamicLight * light, bool checkside, FD
 
 	if (radius <= 0.f) return false;
 	if (dist > radius) return false;
-	if (checkside && gl_lights_checkside && p.PointOnSide(pos.X, pos.Z, pos.Y))
+	if (checkside && p.PointOnSide(pos.X, pos.Z, pos.Y))
 	{
 		return false;
 	}
diff --git a/src/gl/scene/gl_flats.cpp b/src/gl/scene/gl_flats.cpp
index 769412d132..eee7f951c1 100644
--- a/src/gl/scene/gl_flats.cpp
+++ b/src/gl/scene/gl_flats.cpp
@@ -133,7 +133,7 @@ void GLFlat::SetupSubsectorLights(int pass, subsector_t * sub, int *dli)
 		// we must do the side check here because gl_SetupLight needs the correct plane orientation
 		// which we don't have for Legacy-style 3D-floors
 		double planeh = plane.plane.ZatPoint(light);
-		if (gl_lights_checkside && ((planeh<light->Z() && ceiling) || (planeh>light->Z() && !ceiling)))
+		if ((planeh<light->Z() && ceiling) || (planeh>light->Z() && !ceiling))
 		{
 			node = node->nextLight;
 			continue;
diff --git a/src/gl/system/gl_cvars.h b/src/gl/system/gl_cvars.h
index 51ab642de7..ec4784440d 100644
--- a/src/gl/system/gl_cvars.h
+++ b/src/gl/system/gl_cvars.h
@@ -23,7 +23,7 @@ EXTERN_CVAR(Int, gl_weaponlight)
 
 EXTERN_CVAR (Bool, gl_lights);
 EXTERN_CVAR (Bool, gl_attachedlights);
-EXTERN_CVAR (Bool, gl_lights_checkside);
+
 EXTERN_CVAR (Bool, gl_light_sprites);
 EXTERN_CVAR (Bool, gl_light_particles);
 EXTERN_CVAR (Bool, gl_light_shadowmap);
diff --git a/wadsrc/static/menudef.txt b/wadsrc/static/menudef.txt
index 85c77e35d5..d769af6e10 100644
--- a/wadsrc/static/menudef.txt
+++ b/wadsrc/static/menudef.txt
@@ -2193,7 +2193,6 @@ OptionMenu "GLLightOptions" protected
 	Option "$TCMNU_DYNLIGHTS",					"r_dynlights", "OnOff"
 	Option "$GLLIGHTMNU_LIGHTSENABLED",			gl_lights,				"OnOff"
 	Option "$GLLIGHTMNU_LIGHTDEFS",				gl_attachedlights,		"YesNo"
-	Option "$GLLIGHTMNU_CLIPLIGHTS",			gl_lights_checkside,	"YesNo"
 	Option "$GLLIGHTMNU_LIGHTSPRITES",			gl_light_sprites,		"YesNo"
 	Option "$GLLIGHTMNU_LIGHTPARTICLES",		gl_light_particles,		"YesNo"
 	Option "$GLLIGHTMNU_LIGHTSHADOWMAP",		gl_light_shadowmap,		"YesNo"