diff --git a/gsk/ngl/gsknglcommandqueue.c b/gsk/ngl/gsknglcommandqueue.c
index bebd315823..0fb56cfc50 100644
--- a/gsk/ngl/gsknglcommandqueue.c
+++ b/gsk/ngl/gsknglcommandqueue.c
@@ -424,8 +424,6 @@ gsk_ngl_command_queue_init (GskNglCommandQueue *self)
   gsk_ngl_command_binds_init (&self->batch_binds, 1024);
   gsk_ngl_command_uniforms_init (&self->batch_uniforms, 2048);
 
-  self->debug_groups = g_string_chunk_new (4096);
-
   gsk_ngl_buffer_init (&self->vertices, GL_ARRAY_BUFFER, sizeof (GskNglDrawVertex));
 }
 
@@ -1215,8 +1213,6 @@ gsk_ngl_command_queue_end_frame (GskNglCommandQueue *self)
         }
     }
 
-  g_string_chunk_clear (self->debug_groups);
-
   self->batches.len = 0;
   self->batch_binds.len = 0;
   self->batch_uniforms.len = 0;
diff --git a/gsk/ngl/gsknglcommandqueueprivate.h b/gsk/ngl/gsknglcommandqueueprivate.h
index 9a35326cee..e51d1abb46 100644
--- a/gsk/ngl/gsknglcommandqueueprivate.h
+++ b/gsk/ngl/gsknglcommandqueueprivate.h
@@ -225,9 +225,6 @@ struct _GskNglCommandQueue
    */
   GskNglCommandUniforms batch_uniforms;
 
-  /* String storage for debug groups */
-  GStringChunk *debug_groups;
-
   /* Discovered max texture size when loading the command queue so that we
    * can either scale down or slice textures to fit within this size. Assumed
    * to be both height and width.