diff --git a/libultraship/libultraship/Lib/Fast3D/gfx_opengl.cpp b/libultraship/libultraship/Lib/Fast3D/gfx_opengl.cpp
index 6f3017c15..e0e76d32a 100644
--- a/libultraship/libultraship/Lib/Fast3D/gfx_opengl.cpp
+++ b/libultraship/libultraship/Lib/Fast3D/gfx_opengl.cpp
@@ -610,6 +610,7 @@ static void gfx_opengl_init(void) {
     glGenBuffers(1, &opengl_vbo);
     glBindBuffer(GL_ARRAY_BUFFER, opengl_vbo);
 
+    glEnable(GL_DEPTH_CLAMP);
     glDepthFunc(GL_LEQUAL);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);