diff --git a/tools/ci/amd64/clang/msan.sh b/tools/ci/amd64/clang/msan.sh
index 4c01b7f..7ea4eca 100755
--- a/tools/ci/amd64/clang/msan.sh
+++ b/tools/ci/amd64/clang/msan.sh
@@ -3,6 +3,8 @@
 set -euo pipefail
 cd "$(git rev-parse --show-toplevel)/"
 
+source '/1.4.328.1/setup-env.sh'
+
 CC=$(which clang)
 export CC
 
@@ -12,6 +14,9 @@ export CXX
 DISPLAY=:99
 export DISPLAY
 
+PKG_CONFIG_PATH="/msan/lib/pkgconfig:${PKG_CONFIG_PATH}"
+export PKG_CONFIG_PATH
+
 Xvfb :99 -screen 0 1024x768x16 &
 
 cmake \