diff --git a/chunk.py b/chunk.py
index dd06ffe..8ed85b8 100644
--- a/chunk.py
+++ b/chunk.py
@@ -120,7 +120,7 @@ transparent_blocks = set([0, 6, 8, 9, 18, 20, 37, 38, 39, 40, 44, 50, 51, 52, 53
 # This set holds block ids that are solid blocks
 solid_blocks = set([1, 2, 3, 4, 5, 7, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
     23, 24, 25, 35, 41, 42, 43, 44, 45, 46, 47, 48, 49, 53, 54, 56, 57, 58, 60, 
-    61, 62, 64, 65, 66, 67, 71, 73, 74, 78, 79, 80, 81, 82, 84, 86, 87, 88, 89, 91, 92])
+    61, 62, 67, 73, 74, 78, 79, 80, 81, 82, 84, 86, 87, 88, 89, 91])
 
 # This set holds block ids that are fluid blocks
 fluid_blocks = set([8,9,10,11])
diff --git a/src/rendermode-overlay.c b/src/rendermode-overlay.c
index 2a15302..4029ae9 100644
--- a/src/rendermode-overlay.c
+++ b/src/rendermode-overlay.c
@@ -76,6 +76,13 @@ rendermode_overlay_draw(void *data, RenderState *state, PyObject *src, PyObject
     unsigned char r, g, b, a;
     PyObject *top_block_py, *block_py;
     
+    // exactly analogous to edge-line code for these special blocks
+    int increment=0;
+    if (state->block == 44)  // half-step
+        increment=6;
+    else if (state->block == 78) // snow
+        increment=9;
+    
     /* clear the draw space -- set alpha to 0 within mask */
     tint_with_mask(state->img, 255, 255, 255, 0, mask, state->imgx, state->imgy, 0, 0);
 
@@ -114,8 +121,8 @@ rendermode_overlay_draw(void *data, RenderState *state, PyObject *src, PyObject
     
     /* do the overlay */
     if (a > 0) {
-        alpha_over(state->img, self->white_color, self->facemask_top, state->imgx, state->imgy, 0, 0);
-        tint_with_mask(state->img, r, g, b, a, self->facemask_top, state->imgx, state->imgy, 0, 0);
+        alpha_over(state->img, self->white_color, self->facemask_top, state->imgx, state->imgy + increment, 0, 0);
+        tint_with_mask(state->img, r, g, b, a, self->facemask_top, state->imgx, state->imgy + increment, 0, 0);
     }
 }