diff --git a/build/build_apple_frameworks.sh b/build/build_apple_frameworks.sh
index e6a62f8515a..e5f65ff9e48 100755
--- a/build/build_apple_frameworks.sh
+++ b/build/build_apple_frameworks.sh
@@ -53,6 +53,7 @@ libmicrokernels-prod.a,\
 
 FRAMEWORK_KERNELS_CUSTOM="kernels_custom:\
 libcustom_ops.a,\
+libextension_parallel.a,\
 :"
 
 FRAMEWORK_KERNELS_OPTIMIZED="kernels_optimized:\