diff --git a/compiler-rt/CMakeLists.txt b/compiler-rt/CMakeLists.txt
index 7dfb1ee2899f..800304c07638 100644
--- a/compiler-rt/CMakeLists.txt
+++ b/compiler-rt/CMakeLists.txt
@@ -192,8 +192,7 @@ if (COMPILER_RT_INTERCEPT_LIBDISPATCH AND NOT APPLE)
   set(COMPILER_RT_TEST_LIBDISPATCH_CFLAGS)
   if (COMPILER_RT_LIBDISPATCH_INSTALL_PATH)
     list(APPEND COMPILER_RT_TEST_LIBDISPATCH_CFLAGS
-        -I${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/include)
-    list(APPEND COMPILER_RT_TEST_LIBDISPATCH_CFLAGS
+        -I${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/include
         -L${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/lib
         -Wl,-rpath=${COMPILER_RT_LIBDISPATCH_INSTALL_PATH}/lib)
   endif()