diff --git a/src/libslic3r/Print.cpp b/src/libslic3r/Print.cpp
index 06959e9119..c1375fd0cf 100644
--- a/src/libslic3r/Print.cpp
+++ b/src/libslic3r/Print.cpp
@@ -1,4 +1,4 @@
-#include "Config.hpp"
+#include "Config.hpp"
 #include "Exception.hpp"
 #include "Print.hpp"
 #include "BoundingBox.hpp"
diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index 0e5970a5e9..034a74e8d1 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -1,4 +1,4 @@
-#include "PrintConfig.hpp"
+#include "PrintConfig.hpp"
 #include "PrintConfigConstants.hpp"
 #include "ClipperUtils.hpp"
 #include "Config.hpp"
diff --git a/src/slic3r/GUI/Tab.cpp b/src/slic3r/GUI/Tab.cpp
index b96e2c8779..8087052469 100644
--- a/src/slic3r/GUI/Tab.cpp
+++ b/src/slic3r/GUI/Tab.cpp
@@ -1,4 +1,4 @@
-// #include "libslic3r/GCodeSender.hpp"
+// #include "libslic3r/GCodeSender.hpp"
 //#include "slic3r/Utils/Serial.hpp"
 #include "Tab.hpp"
 #include "PresetHints.hpp"