diff --git a/crates/sesam-vitale/build.rs b/crates/sesam-vitale/build.rs
index 15d7c70..0c0a47b 100644
--- a/crates/sesam-vitale/build.rs
+++ b/crates/sesam-vitale/build.rs
@@ -5,13 +5,17 @@ use std::path::PathBuf;
 
 fn main() {
     // Load the .env.build file for build-time environment variables
-    dotenv::from_filename(".env.build").ok();
-    println!("cargo::rerun-if-changed=.env.build");
-
     let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
+    let manifest_path = PathBuf::from(manifest_dir);
+    dotenv::from_path(manifest_path.join(".env.build")).ok();
+    
+    println!("cargo::rerun-if-env-changed=SESAM_FSV_LIB_PATH");
+    println!("cargo::rerun-if-env-changed=SESAM_FSV_SSVLIB");
+    println!("cargo::rerun-if-changed=.env.build");
+    println!("cargo::rerun-if-changed=build.rs");
 
     // Add local lib directory to the linker search path (for def files and static libs)
-    let static_lib_path = PathBuf::from(manifest_dir).join("lib");
+    let static_lib_path = manifest_path.join("lib");
     println!("cargo::rustc-link-search=native={}", static_lib_path.display());
 
     // Add the SESAM_FSV_LIB_PATH to the linker search path
diff --git a/crates/sesam-vitale/src/ssvlib_demo.rs b/crates/sesam-vitale/src/ssvlib_demo.rs
index 9dd6f3e..5905b6e 100644
--- a/crates/sesam-vitale/src/ssvlib_demo.rs
+++ b/crates/sesam-vitale/src/ssvlib_demo.rs
@@ -3,9 +3,9 @@ extern crate dotenv;
 
 use libc::{ c_char, c_void, c_ushort, size_t };
 use std::ffi::CString;
+use std::path::PathBuf;
 use std::ptr;
 
-use dotenv::dotenv;
 use std::env;
 
 extern "C" {
@@ -72,7 +72,9 @@ fn ssv_lire_config() {
 }
 
 pub fn demo() {
-    dotenv().ok();
+    let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
+    let manifest_path = PathBuf::from(manifest_dir);
+    dotenv::from_path(manifest_path.join(".env")).ok();
 
     println!("------- Demo for the SSV library --------");