diff --git a/wpiannotations/CMakeLists.txt b/wpiannotations/CMakeLists.txt
index 11eabdbc29..ce6160a660 100644
--- a/wpiannotations/CMakeLists.txt
+++ b/wpiannotations/CMakeLists.txt
@@ -30,6 +30,7 @@ if(WITH_JAVA_SOURCE)
         wpiannotations_src_jar
         BASE_DIRECTORIES ${CMAKE_CURRENT_SOURCE_DIR}/src/main/java
         OUTPUT_NAME wpiannotations-sources
+        OUTPUT_DIR ${WPILIB_BINARY_DIR}/${java_lib_dest}
     )
     set_property(TARGET wpiannotations_src_jar PROPERTY FOLDER "java")
 
diff --git a/wpiunits/CMakeLists.txt b/wpiunits/CMakeLists.txt
index df2964a175..e6ba2ba0db 100644
--- a/wpiunits/CMakeLists.txt
+++ b/wpiunits/CMakeLists.txt
@@ -28,6 +28,7 @@ if(WITH_JAVA_SOURCE)
             ${CMAKE_CURRENT_SOURCE_DIR}/src/main/java
             ${CMAKE_CURRENT_SOURCE_DIR}/src/generated/main/java
         OUTPUT_NAME wpiunits-sources
+        OUTPUT_DIR ${WPILIB_BINARY_DIR}/${java_lib_dest}
     )
     set_property(TARGET wpiunits_src_jar PROPERTY FOLDER "java")