diff --git a/engine/common/mod_bmodel.c b/engine/common/mod_bmodel.c
index fca6da57..8b5e513e 100644
--- a/engine/common/mod_bmodel.c
+++ b/engine/common/mod_bmodel.c
@@ -1677,9 +1677,10 @@ static void Mod_SetupSubmodels( model_t *mod, dbspmodel_t *bmod )
 			// mark models that have origin brushes
 			if( !VectorIsNull( bm->origin ))
 				SetBits( mod->flags, MODEL_HAS_ORIGIN );
+
 #ifdef HACKS_RELATED_HLMODS
 			// c2a1 doesn't have origin brush it's just placed at center of the level
-			if( !Q_stricmp( name, "maps/c2a1.bsp" ) && ( i == 11 ))
+			if( i == 11 && !Q_stricmp( name, "maps/c2a1.bsp" ))
 				SetBits( mod->flags, MODEL_HAS_ORIGIN );
 #endif
 		}
@@ -1835,6 +1836,8 @@ static void Mod_LoadEntities( model_t *mod, dbspmodel_t *bmod )
 	world.generator[0] = '\0';
 	world.compiler[0] = '\0';
 	world.message[0] = '\0';
+	world.litwater_minlight = -1;
+	world.litwater_scale = -1.0f;
 	bmod->wadlist.count = 0;
 
 	// parse all the wads for loading textures in right ordering
@@ -1893,6 +1896,12 @@ static void Mod_LoadEntities( model_t *mod, dbspmodel_t *bmod )
 				Q_strncpy( world.compiler, token, sizeof( world.compiler ));
 			else if( !Q_stricmp( keyname, "generator" ) || !Q_stricmp( keyname, "_generator" ))
 				Q_strncpy( world.generator, token, sizeof( world.generator ));
+			else if( !Q_stricmp( keyname, "_litwater" ))
+				SetBits( world.flags, FWORLD_HAS_LITWATER );
+			else if( !Q_stricmp( keyname, "_litwater_minlight" ))
+				world.litwater_minlight = Q_atoi( token );
+			else if( !Q_stricmp( keyname, "_litwater_scale" ))
+				world.litwater_scale = Q_atof( token );
 		}
 		return;	// all done
 	}
diff --git a/engine/common/mod_local.h b/engine/common/mod_local.h
index c75246f5..18653e0b 100644
--- a/engine/common/mod_local.h
+++ b/engine/common/mod_local.h
@@ -119,6 +119,10 @@ typedef struct world_static_s
 	// Potentially Hearable Set
 	byte   *compressed_phs;
 	size_t *phsofs;
+
+	// lightmapped water extra info
+	float litwater_scale;
+	int   litwater_minlight;
 } world_static_t;
 
 #ifndef REF_DLL
diff --git a/engine/ref_api.h b/engine/ref_api.h
index 4e7d7656..41482f77 100644
--- a/engine/ref_api.h
+++ b/engine/ref_api.h
@@ -80,10 +80,11 @@ GNU General Public License for more details.
 #define MODEL_CLIENT		BIT( 30 )	// client sprite
 
 // goes into world.flags
-#define FWORLD_SKYSPHERE		BIT( 0 )
-#define FWORLD_CUSTOM_SKYBOX		BIT( 1 )
-#define FWORLD_WATERALPHA		BIT( 2 )
-#define FWORLD_HAS_DELUXEMAP		BIT( 3 )
+#define FWORLD_SKYSPHERE     BIT( 0 )
+#define FWORLD_CUSTOM_SKYBOX BIT( 1 )
+#define FWORLD_WATERALPHA    BIT( 2 )
+#define FWORLD_HAS_DELUXEMAP BIT( 3 )
+#define FWORLD_HAS_LITWATER  BIT( 4 )
 
 // special rendermode for screenfade modulate
 // (probably will be expanded at some point)