diff --git a/src/control/XournalMain.cpp b/src/control/XournalMain.cpp
index d24353e1..87508129 100644
--- a/src/control/XournalMain.cpp
+++ b/src/control/XournalMain.cpp
@@ -19,7 +19,11 @@
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/locale.hpp>
+
+#ifdef __APPLE__
 #undef ENABLE_NLS
+#endif
+
 namespace bf = boost::filesystem;
 
 #include <string>
diff --git a/src/xoj-preview-extractor/xournal-thumbnailer.cpp b/src/xoj-preview-extractor/xournal-thumbnailer.cpp
index a76c93c9..6205f431 100644
--- a/src/xoj-preview-extractor/xournal-thumbnailer.cpp
+++ b/src/xoj-preview-extractor/xournal-thumbnailer.cpp
@@ -19,7 +19,11 @@
 #include <XojPreviewExtractor.h>
 
 namespace bl = boost::locale;
+
+#ifdef __APPLE__
 #undef ENABLE_NLS
+#endif
+
 #include <iostream>
 #include <fstream>
 using std::cerr;