diff --git a/indra/cmake/LLAddBuildTest.cmake b/indra/cmake/LLAddBuildTest.cmake
index 3f259f6382e078b92dff9fe223058e501df6f51a..08feab6e36998c559cadb4ce01006787759c4537 100644
--- a/indra/cmake/LLAddBuildTest.cmake
+++ b/indra/cmake/LLAddBuildTest.cmake
@@ -95,7 +95,7 @@ INCLUDE(GoogleMock)
     IF(${name}_test_additional_INCLUDE_DIRS MATCHES NOTFOUND)
       SET(${name}_test_additional_INCLUDE_DIRS "")
     ENDIF(${name}_test_additional_INCLUDE_DIRS MATCHES NOTFOUND)
-    INCLUDE_DIRECTORIES(${alltest_INCLUDE_DIRS} ${name}_test_additional_INCLUDE_DIRS )
+    INCLUDE_DIRECTORIES(${alltest_INCLUDE_DIRS} ${${name}_test_additional_INCLUDE_DIRS} )
     IF(LL_TEST_VERBOSE)
       MESSAGE("LL_ADD_PROJECT_UNIT_TESTS ${name}_test_additional_INCLUDE_DIRS ${${name}_test_additional_INCLUDE_DIRS}")
     ENDIF(LL_TEST_VERBOSE)