diff --git a/src/playsim/a_corona.cpp b/src/playsim/a_corona.cpp
index edeba7566f..0e0cb4a980 100644
--- a/src/playsim/a_corona.cpp
+++ b/src/playsim/a_corona.cpp
@@ -24,11 +24,9 @@
 #include "a_corona.h"
 #include "a_dynlight.h"
 
-#if 0
 IMPLEMENT_CLASS(ACorona, false, false)
 
 void ACorona::Tick()
 {
 	Super::Tick();
 }
-#endif
\ No newline at end of file
diff --git a/src/playsim/a_corona.h b/src/playsim/a_corona.h
index c1863f8a2e..2c66f0a204 100644
--- a/src/playsim/a_corona.h
+++ b/src/playsim/a_corona.h
@@ -27,7 +27,6 @@ EXTERN_CVAR(Bool, gl_coronas)
 
 class AActor;
 
-#if 0
 class ACorona : public AActor
 {
 	DECLARE_CLASS(ACorona, AActor)
@@ -37,4 +36,3 @@ public:
 
 	float CoronaFade = 0.0f;
 };
-#endif
\ No newline at end of file
diff --git a/src/playsim/actor.h b/src/playsim/actor.h
index 6ebb7f1cd6..04b561521b 100644
--- a/src/playsim/actor.h
+++ b/src/playsim/actor.h
@@ -744,7 +744,7 @@ public:
 const double MinVel = EQUAL_EPSILON;
 
 // Map Object definition.
-class AActor final : public DThinker
+class AActor : public DThinker
 {
 	DECLARE_CLASS_WITH_META (AActor, DThinker, PClassActor)
 	HAS_OBJECT_POINTERS
diff --git a/src/rendering/hwrenderer/scene/hw_drawinfo.cpp b/src/rendering/hwrenderer/scene/hw_drawinfo.cpp
index 38786459ca..1d11c176d1 100644
--- a/src/rendering/hwrenderer/scene/hw_drawinfo.cpp
+++ b/src/rendering/hwrenderer/scene/hw_drawinfo.cpp
@@ -583,7 +583,6 @@ void HWDrawInfo::RenderPortal(HWPortal *p, FRenderState &state, bool usestencil)
 
 void HWDrawInfo::DrawCorona(FRenderState& state, ACorona* corona, double dist)
 {
-#if 0
 	spriteframe_t* sprframe = &SpriteFrames[sprites[corona->sprite].spriteframes + (size_t)corona->SpawnState->GetFrame()];
 	FTextureID patch = sprframe->Texture[0];
 	if (!patch.isValid()) return;
@@ -645,7 +644,6 @@ void HWDrawInfo::DrawCorona(FRenderState& state, ACorona* corona, double dist)
 	vp[3].Set(x1, y1, 1.0f, u1, v1);
 
 	state.Draw(DT_TriangleStrip, vertexindex, 4);
-#endif
 }
 
 static ETraceStatus CheckForViewpointActor(FTraceResults& res, void* userdata)
@@ -673,7 +671,6 @@ void HWDrawInfo::DrawCoronas(FRenderState& state)
 	float timeElapsed = (screen->FrameTime - LastFrameTime) / 1000.0f;
 	LastFrameTime = screen->FrameTime;
 
-#if 0
 	for (ACorona* corona : Coronas)
 	{
 		auto cPos = corona->Vec3Offset(0., 0., corona->Height * 0.5);
@@ -700,7 +697,6 @@ void HWDrawInfo::DrawCoronas(FRenderState& state)
 		if (corona->CoronaFade > 0.0f)
 			DrawCorona(state, corona, dist);
 	}
-#endif
 
 	state.SetTextureMode(TM_NORMAL);
 	screen->mViewpoints->Bind(state, vpIndex);
@@ -720,10 +716,10 @@ void HWDrawInfo::EndDrawScene(sector_t * viewsector, FRenderState &state)
 {
 	state.EnableFog(false);
 
-	/*if (gl_coronas && Coronas.Size() > 0)
+	if (gl_coronas && Coronas.Size() > 0)
 	{
 		DrawCoronas(state);
-	}*/
+	}
 
 	// [BB] HUD models need to be rendered here. 
 	const bool renderHUDModel = IsHUDModelForPlayerAvailable(players[consoleplayer].camera->player);
diff --git a/src/rendering/hwrenderer/scene/hw_drawinfo.h b/src/rendering/hwrenderer/scene/hw_drawinfo.h
index 68afcb2466..c24f7c0ca2 100644
--- a/src/rendering/hwrenderer/scene/hw_drawinfo.h
+++ b/src/rendering/hwrenderer/scene/hw_drawinfo.h
@@ -151,7 +151,7 @@ struct HWDrawInfo
 	TArray<HWPortal *> Portals;
 	TArray<HWDecal *> Decals[2];	// the second slot is for mirrors which get rendered in a separate pass.
 	TArray<HUDSprite> hudsprites;	// These may just be stored by value.
-	//TArray<ACorona*> Coronas;
+	TArray<ACorona*> Coronas;
 	uint64_t LastFrameTime = 0;
 
 	TArray<MissingTextureInfo> MissingUpperTextures;
diff --git a/src/rendering/hwrenderer/scene/hw_sprites.cpp b/src/rendering/hwrenderer/scene/hw_sprites.cpp
index 7da37eac00..e8e75e00f7 100644
--- a/src/rendering/hwrenderer/scene/hw_sprites.cpp
+++ b/src/rendering/hwrenderer/scene/hw_sprites.cpp
@@ -707,13 +707,11 @@ void HWSprite::Process(HWDrawInfo *di, AActor* thing, sector_t * sector, area_t
 		return;
 	}
 
-#if 0
 	if (thing->IsKindOf(NAME_Corona))
 	{
 		di->Coronas.Push(static_cast<ACorona*>(thing));
 		return;
 	}
-#endif
 
 	const auto &vp = di->Viewpoint;
 	AActor *camera = vp.camera;
diff --git a/wadsrc/static/menudef.txt b/wadsrc/static/menudef.txt
index 3c5e1c739f..fd9e8185a3 100644
--- a/wadsrc/static/menudef.txt
+++ b/wadsrc/static/menudef.txt
@@ -2629,7 +2629,7 @@ OptionMenu "OpenGLOptions" protected
 	Option "$GLPREFMNU_SPRBILLFACECAMERA",		gl_billboard_faces_camera,		"OnOff"
 	Option "$GLPREFMNU_PARTICLESTYLE",			gl_particles_style,				"Particles"
 	Option "$GLPREFMNU_RENDERQUALITY",			gl_seamless,					"Precision"
-	//Option "$GLPREFMNU_CORONAS",				gl_coronas,						"OnOff"
+	Option "$GLPREFMNU_CORONAS",				gl_coronas,						"OnOff"
 	StaticText " "
 	Slider "$GLPREFMNU_MENUBLUR",				gl_menu_blur, 0, 5.0, 0.5, 2
 	StaticText " "
diff --git a/wadsrc/static/zscript/actors/shared/corona.zs b/wadsrc/static/zscript/actors/shared/corona.zs
index 996921f821..0516c6c173 100644
--- a/wadsrc/static/zscript/actors/shared/corona.zs
+++ b/wadsrc/static/zscript/actors/shared/corona.zs
@@ -1,4 +1,4 @@
-/*class Corona : Actor native
+class Corona : Actor native
 {
 	Default
 	{
@@ -7,4 +7,4 @@
 		+NOINTERACTION
 		+FORCEXYBILLBOARD
 	}
-}*/
+}