diff --git a/libs/walproposer/build.rs b/libs/walproposer/build.rs
index 834e77893c..d8295bb6c3 100644
--- a/libs/walproposer/build.rs
+++ b/libs/walproposer/build.rs
@@ -33,8 +33,7 @@ fn main() -> anyhow::Result<()> {
     {
         println!("cargo:rustc-link-arg=-fsanitize=address");
         println!("cargo:rustc-link-arg=-fsanitize=undefined");
-        println!("cargo:rustc-link-arg=-static-libasan");
-        println!("cargo:rustc-link-arg=-static-libubsan");
+        println!("cargo:rustc-link-arg=-static-libsan");
     }
     println!("cargo:rustc-link-lib=static=pgport");
     println!("cargo:rustc-link-lib=static=pgcommon");