diff --git a/elixirkit/otp_bootstrap/build.sh b/elixirkit/otp_bootstrap/build.sh
index 5ece0cef5..964ebcdc4 100755
--- a/elixirkit/otp_bootstrap/build.sh
+++ b/elixirkit/otp_bootstrap/build.sh
@@ -13,6 +13,8 @@ otp_version=$1
 openssl_version=$2
 target=$3
 
+ulimit -n 65535
+
 # Common build flags
 export MAKEFLAGS=-j8
 cflags="-Os -fno-common -mmacosx-version-min=11.0"