diff --git a/ref_gl/gl_rsurf.c b/ref_gl/gl_rsurf.c
index e01fa722..5a33ab9b 100644
--- a/ref_gl/gl_rsurf.c
+++ b/ref_gl/gl_rsurf.c
@@ -2362,10 +2362,10 @@ static void R_DrawLightmappedVBO( vboarray_t *vbo, vbotexture_t *vbotex, texture
 					R_SetDecalMode( true );
 					if( vbos.decal_dlight_vbo )
 					{
-						pglTexCoordPointer( 2, GL_FLOAT, sizeof( vbovertex_t ), offsetof( vbovertex_t, lm_tc ) );
+						pglTexCoordPointer( 2, GL_FLOAT, sizeof( vbovertex_t ), (void*)offsetof( vbovertex_t, lm_tc ) );
 						GL_SelectTexture( mtst.tmu_gl );
-						pglTexCoordPointer( 2, GL_FLOAT, sizeof( vbovertex_t ), offsetof( vbovertex_t, gl_tc ) );
-						pglVertexPointer( 3, GL_FLOAT, sizeof( vbovertex_t ), offsetof( vbovertex_t, pos ) );
+						pglTexCoordPointer( 2, GL_FLOAT, sizeof( vbovertex_t ), (void*)offsetof( vbovertex_t, gl_tc ) );
+						pglVertexPointer( 3, GL_FLOAT, sizeof( vbovertex_t ), (void*)offsetof( vbovertex_t, pos ) );
 					}
 					else
 					{
@@ -2544,10 +2544,10 @@ static void R_DrawLightmappedVBO( vboarray_t *vbo, vbotexture_t *vbotex, texture
 				R_SetDecalMode( true );
 				if( vbos.decal_dlight_vbo )
 				{
-					pglTexCoordPointer( 2, GL_FLOAT, sizeof( vbovertex_t ), offsetof( vbovertex_t, lm_tc ) );
+					pglTexCoordPointer( 2, GL_FLOAT, sizeof( vbovertex_t ), (void*)offsetof( vbovertex_t, lm_tc ) );
 					GL_SelectTexture( mtst.tmu_gl );
-					pglTexCoordPointer( 2, GL_FLOAT, sizeof( vbovertex_t ), offsetof( vbovertex_t, gl_tc ) );
-					pglVertexPointer( 3, GL_FLOAT, sizeof( vbovertex_t ), offsetof( vbovertex_t, pos ) );
+					pglTexCoordPointer( 2, GL_FLOAT, sizeof( vbovertex_t ), (void*)offsetof( vbovertex_t, gl_tc ) );
+					pglVertexPointer( 3, GL_FLOAT, sizeof( vbovertex_t ), (void*)offsetof( vbovertex_t, pos ) );
 				}
 				else
 				{