diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0dc4728d5..0e218990c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -51,9 +51,9 @@ elseif(APPLE)
 	set(BINDIR "bin")
 	set(DOCDIR "share/doc/minetest")
 elseif(UNIX)
-	set(DATADIR "/usr/share/minetest")
-	set(BINDIR "/usr/bin")
-	set(DOCDIR "/usr/share/doc/minetest")
+	set(DATADIR "usr/share/minetest")
+	set(BINDIR "usr/bin")
+	set(DOCDIR "usr/share/doc/minetest")
 endif()
 
 install(FILES "doc/README.txt" DESTINATION "${DOCDIR}")