diff --git a/src/libslic3r/GCode.hpp b/src/libslic3r/GCode.hpp
index acd5acb0a2..47abf6be85 100644
--- a/src/libslic3r/GCode.hpp
+++ b/src/libslic3r/GCode.hpp
@@ -184,7 +184,7 @@ struct LayerResult {
     // 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 {