diff --git a/ra-tls/README.md b/ra-tls/README.md
index 5e2a9205a53498ed25f6651ffc8fb84ac2c593e0..7de38da2299fe07e879b709fd307e2df37f5cec5 100644
--- a/ra-tls/README.md
+++ b/ra-tls/README.md
@@ -7,6 +7,7 @@ export QUOTE_TYPE=<SGX_LINKABLE_SIGNATURE | SGX_UNLINKABLE_SIGNATURE>
 
 # Build
 ``` shell
+sudo yum install -y glibc-static
 cd $src/ra-tls
 make
 ```