diff --git a/cad/OrcaSlicer/files/patch-src_libslic3r_GCode.hpp b/cad/OrcaSlicer/files/patch-src_libslic3r_GCode.hpp
new file mode 100644
index 000000000000..d074cd3fa713
--- /dev/null
+++ b/cad/OrcaSlicer/files/patch-src_libslic3r_GCode.hpp
@@ -0,0 +1,11 @@
+--- src/libslic3r/GCode.hpp.orig	2025-03-01 00:00:00 UTC
++++ src/libslic3r/GCode.hpp
+@@ -176,7 +176,7 @@
+     // It is used for the pressure equalizer because it needs to buffer one layer back.
+     bool        nop_layer_result { false };
+ 
+-    static LayerResult make_nop_layer_result() { return {"", std::numeric_limits<coord_t>::max(), false, false, true}; }
++    static LayerResult make_nop_layer_result() { return {"", std::numeric_limits<size_t>::max(), false, false, true}; }
+ };
+ 
+ class GCode {