diff --git a/src/libslic3r/Config.cpp b/src/libslic3r/Config.cpp
index 7273fda01..0738b77c6 100644
--- a/src/libslic3r/Config.cpp
+++ b/src/libslic3r/Config.cpp
@@ -508,10 +508,12 @@ void ConfigBase::load_from_gcode_file(const std::string &file)
 	boost::nowide::ifstream ifs(file);
 	{
 		const char slic3r_gcode_header[] = "; generated by Slic3r ";
+        const char prusaslicer_gcode_header[] = "; generated by PrusaSlicer ";
 		std::string firstline;
 		std::getline(ifs, firstline);
-		if (strncmp(slic3r_gcode_header, firstline.c_str(), strlen(slic3r_gcode_header)) != 0)
-			throw std::runtime_error("Not a Slic3r generated g-code.");
+		if (strncmp(slic3r_gcode_header, firstline.c_str(), strlen(slic3r_gcode_header)) != 0 &&
+            strncmp(prusaslicer_gcode_header, firstline.c_str(), strlen(prusaslicer_gcode_header)) != 0)
+			throw std::runtime_error("Not a PrusaSlicer / Slic3r PE generated g-code.");
 	}
     ifs.seekg(0, ifs.end);
 	auto file_length = ifs.tellg();