diff --git a/scripts/fish/os.fish b/scripts/fish/os.fish
index 67aa7f9..e78d49e 100644
--- a/scripts/fish/os.fish
+++ b/scripts/fish/os.fish
@@ -1,10 +1,13 @@
 switch (uname)
    case Linux
-      set -x CC clang
-      set -x CXX clang++
+      set -gx CC clang
+      set -gx CXX clang++
    case Darwin
-      set -x CMAKE_PREFIX_PATH /usr/local/opt/qt/
-      set -x DISTCC_HOSTS "192.168.1.2,cpp"
+      set -gx CMAKE_PREFIX_PATH /usr/local/opt/qt/
+      set -gx DISTCC_HOSTS "192.168.1.2,cpp"
+      set -gx fish_user_paths "/usr/local/opt/ruby/bin" $fish_user_paths
+      set -gx LDFLAGS "-L/usr/local/opt/ruby/lib"
+      set -gx CPPFLAGS "-I/usr/local/opt/ruby/include"
 end
 
 ## EOF