diff --git a/src/libslic3r/Config.cpp b/src/libslic3r/Config.cpp
index ea6c78f7c..6755a6378 100644
--- a/src/libslic3r/Config.cpp
+++ b/src/libslic3r/Config.cpp
@@ -616,11 +616,11 @@ void ConfigBase::load(const boost::property_tree::ptree &tree)
 }
 
 // Load the config keys from the tail of a G-code file.
-void ConfigBase::load_from_gcode_file(const std::string &file)
+void ConfigBase::load_from_gcode_file(const std::string& file, bool check_header)
 {
     // Read a 64k block from the end of the G-code.
 	boost::nowide::ifstream ifs(file);
-	{
+    if (check_header) {
 		const char slic3r_gcode_header[] = "; generated by Slic3r ";
         const char prusaslicer_gcode_header[] = "; generated by PrusaSlicer ";
 		std::string firstline;
diff --git a/src/libslic3r/Config.hpp b/src/libslic3r/Config.hpp
index 1420ee39e..218e8cd0c 100644
--- a/src/libslic3r/Config.hpp
+++ b/src/libslic3r/Config.hpp
@@ -1791,7 +1791,7 @@ public:
     void setenv_() const;
     void load(const std::string &file);
     void load_from_ini(const std::string &file);
-    void load_from_gcode_file(const std::string &file);
+    void load_from_gcode_file(const std::string& file, bool check_header = true);
     // Returns number of key/value pairs extracted.
     size_t load_from_gcode_string(const char* str);
     void load(const boost::property_tree::ptree &tree);
diff --git a/src/libslic3r/GCode/GCodeProcessor.cpp b/src/libslic3r/GCode/GCodeProcessor.cpp
index c1356fec3..c4b2a3518 100644
--- a/src/libslic3r/GCode/GCodeProcessor.cpp
+++ b/src/libslic3r/GCode/GCodeProcessor.cpp
@@ -970,7 +970,7 @@ void GCodeProcessor::process_file(const std::string& filename, bool apply_postpr
         if (m_producer == EProducer::PrusaSlicer || m_producer == EProducer::Slic3rPE || m_producer == EProducer::Slic3r) {
             DynamicPrintConfig config;
             config.apply(FullPrintConfig::defaults());
-            config.load_from_gcode_file(filename);
+            config.load_from_gcode_file(filename, false);
             apply_config(config);
         }
     }