diff --git a/cpp/ycm/tests/CMakeLists.txt b/cpp/ycm/tests/CMakeLists.txt
index e2c564af..c4d8aa7c 100644
--- a/cpp/ycm/tests/CMakeLists.txt
+++ b/cpp/ycm/tests/CMakeLists.txt
@@ -70,12 +70,24 @@ target_link_libraries( ${PROJECT_NAME}
                        ycm_core
                        gmock_main )
 
-# The test executable expects a "testdata" dir in its working directory. Why?
-# Because there's NO reliable, cross-platform way of getting the directory in
-# which the executable is located.
-add_custom_target( copy_testdata
-                   COMMAND cmake -E copy_directory
-                   ${CMAKE_CURRENT_SOURCE_DIR}/testdata
-                   ${CMAKE_CURRENT_BINARY_DIR}/testdata )
+
+if ( NOT CMAKE_GENERATOR_IS_XCODE )
+  # The test executable expects a "testdata" dir in its working directory. Why?
+  # Because there's NO reliable, cross-platform way of getting the directory in
+  # which the executable is located.
+  add_custom_target( copy_testdata
+                    COMMAND cmake -E copy_directory
+                    ${CMAKE_CURRENT_SOURCE_DIR}/testdata
+                    ${CMAKE_CURRENT_BINARY_DIR}/testdata )
+else()
+  add_custom_target( copy_testdata
+                    COMMAND cmake -E copy_directory
+                    ${CMAKE_CURRENT_SOURCE_DIR}/testdata
+                    ${CMAKE_CURRENT_BINARY_DIR}/Debug/testdata
+                    COMMAND cmake -E copy_directory
+                    ${CMAKE_CURRENT_SOURCE_DIR}/testdata
+                    ${CMAKE_CURRENT_BINARY_DIR}/Release/testdata )
+
+endif()
 
 add_dependencies( ${PROJECT_NAME} copy_testdata )