diff --git a/mandelbulber2/src/system.hpp b/mandelbulber2/src/system.hpp
index 7c3d8d8b9..02d7084b6 100644
--- a/mandelbulber2/src/system.hpp
+++ b/mandelbulber2/src/system.hpp
@@ -48,9 +48,16 @@
 #ifdef _WIN32
 #elif __APPLE__
 #define SHARED_DIR QDir::homePath() + "/share/mandelbulber2"
-#define SHARED_DOC_DIR QDir::homePath() + "/share/doc/mandelbulber2"
 #else
 #define SHARED_DIR "/usr/share/mandelbulber2"
+#endif
+#endif
+
+#ifndef SHARED_DOC_DIR
+#ifdef _WIN32
+#elif __APPLE__
+#define SHARED_DOC_DIR QDir::homePath() + "/share/doc/mandelbulber2"
+#else
 #define SHARED_DOC_DIR "/usr/share/doc/mandelbulber2"
 #endif
 #endif