--- src/CMakeLists.txt.orig	2023-06-11 17:26:52 UTC
+++ src/CMakeLists.txt
@@ -97,7 +97,7 @@ if (OPENGL_FOUND)
 endif (OPENGL_FOUND)
 
 if (UNIX AND (NOT ANDROID))
-	add_definitions("-DBLOBBY_DATA_DIR=\"${CMAKE_INSTALL_PREFIX}/share/blobby\"")
+	add_definitions("-DBLOBBY_DATA_DIR=\"${DATADIR}\"")
 endif()
 
 set(BLOBBY_COMMON_LIBS lua::lua blobnet::blobnet tinyxml2::tinyxml2 PhysFS::PhysFS SDL2::SDL2main SDL2::SDL2 Boost::boost)
