diff --git a/bindings/ruby/CMakeLists.txt b/bindings/ruby/CMakeLists.txt
index 5b07584dee..95f21f359e 100644
--- a/bindings/ruby/CMakeLists.txt
+++ b/bindings/ruby/CMakeLists.txt
@@ -3,6 +3,35 @@
 vexillographer_compile(TARGET ruby_options LANG ruby
   OUT ${CMAKE_CURRENT_SOURCE_DIR}/lib/fdboptions.rb ALL)
 configure_file(fdb.gemspec.cmake fdb.gemspec)
+configure_file(${CMAKE_SOURCE_DIR}/LICENSE ${CMAKE_CURRENT_BINARY_DIR}/LICENSE COPYONLY)
+
+set(SRCS
+  lib/fdb.rb
+  lib/fdbdirectory.rb
+  lib/fdbimpl.rb
+  lib/fdbimpl_v609.rb
+  lib/fdblocality.rb
+  lib/fdboptions.rb
+  lib/fdbsubspace.rb
+  lib/fdbtuple.rb)
+
+set(out_files "")
+foreach(src ${SRCS})
+  get_filename_component(dirname ${src} DIRECTORY)
+  get_filename_component(extname ${src} EXT)
+  if(NOT EXISTS ${dirname})
+    file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/bindings/ruby/${dirname})
+  endif()
+  set(from_path ${CMAKE_CURRENT_SOURCE_DIR}/${src})
+  set(to_path ${CMAKE_CURRENT_BINARY_DIR}/${src})
+  add_custom_command(OUTPUT ${PROJECT_BINARY_DIR}/bindings/ruby/${src}
+    COMMAND ${CMAKE_COMMAND} -E copy ${from_path} ${to_path}
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${src}
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    COMMENT "copy ${src}")
+  set(out_files "${out_files};${PROJECT_BINARY_DIR}/bindings/ruby/${src}")
+endforeach()
+add_custom_target(ruby_binding ALL DEPENDS ${out_files})
 
 if(NOT FDB_RELEASE)
   set(not_fdb_release_string "SNAPSHOT")
@@ -19,4 +48,5 @@ add_custom_command(OUTPUT ${gem_target}
   COMMENT "Building ruby gem")
 add_custom_target(gem_package DEPENDS ${gem_target})
 add_dependencies(gem_package ruby_options)
+add_dependencies(gem_package ruby_binding)
 add_dependencies(packages gem_package)
diff --git a/bindings/ruby/fdb.gemspec.cmake b/bindings/ruby/fdb.gemspec.cmake
index d73b8bac9b..0049a97330 100644
--- a/bindings/ruby/fdb.gemspec.cmake
+++ b/bindings/ruby/fdb.gemspec.cmake
@@ -13,7 +13,7 @@ https://apple.github.io/foundationdb/api-ruby.html.
 EOF
   s.authors = ["FoundationDB"]
   s.email = 'fdb-dist@apple.com'
-  s.files = ["${CMAKE_SOURCE_DIR}/LICENSE", "${CMAKE_CURRENT_SOURCE_DIR}/lib/fdb.rb", "${CMAKE_CURRENT_SOURCE_DIR}/lib/fdbdirectory.rb", "${CMAKE_CURRENT_SOURCE_DIR}/lib/fdbimpl.rb", "${CMAKE_CURRENT_SOURCE_DIR}/lib/fdblocality.rb", "${CMAKE_CURRENT_SOURCE_DIR}/lib/fdboptions.rb", "${CMAKE_CURRENT_SOURCE_DIR}/lib/fdbsubspace.rb", "${CMAKE_CURRENT_SOURCE_DIR}/lib/fdbtuple.rb", "${CMAKE_CURRENT_SOURCE_DIR}/lib/fdbimpl_v609.rb"]
+  s.files = ["LICENSE", "lib/fdb.rb", "lib/fdbdirectory.rb", "lib/fdbimpl.rb", "lib/fdblocality.rb", "lib/fdboptions.rb", "lib/fdbsubspace.rb", "lib/fdbtuple.rb", "lib/fdbimpl_v609.rb"]
   s.homepage = 'https://www.foundationdb.org'
   s.license = 'Apache-2.0'
   s.add_dependency('ffi', '~> 1.1', '>= 1.1.5')