diff --git a/engine/joint/v4k.h b/engine/joint/v4k.h
index 9db2adc..c3daeb2 100644
--- a/engine/joint/v4k.h
+++ b/engine/joint/v4k.h
@@ -387205,6 +387205,7 @@ void ddraw_flush() {
 
 void ddraw_flush_projview(mat44 proj, mat44 view) {
     do_once dd_rs = renderstate();
+    dd_rs.depth_test_enabled = !dd_ontop;
     dd_rs.cull_face_enabled = 0;
 
     glActiveTexture(GL_TEXTURE0);
diff --git a/engine/split/v4k_renderdd.c b/engine/split/v4k_renderdd.c
index 63b7de3..158177d 100644
--- a/engine/split/v4k_renderdd.c
+++ b/engine/split/v4k_renderdd.c
@@ -68,6 +68,7 @@ void ddraw_flush() {
 
 void ddraw_flush_projview(mat44 proj, mat44 view) {
     do_once dd_rs = renderstate();
+    dd_rs.depth_test_enabled = !dd_ontop;
     dd_rs.cull_face_enabled = 0;
 
     glActiveTexture(GL_TEXTURE0);
diff --git a/engine/v4k.c b/engine/v4k.c
index 5a9e82c..539c35c 100644
--- a/engine/v4k.c
+++ b/engine/v4k.c
@@ -21745,6 +21745,7 @@ void ddraw_flush() {
 
 void ddraw_flush_projview(mat44 proj, mat44 view) {
     do_once dd_rs = renderstate();
+    dd_rs.depth_test_enabled = !dd_ontop;
     dd_rs.cull_face_enabled = 0;
 
     glActiveTexture(GL_TEXTURE0);