diff --git a/.changes/build-rerun-if-config-var-change.md b/.changes/build-rerun-if-config-var-change.md
new file mode 100644
index 000000000..ce821a890
--- /dev/null
+++ b/.changes/build-rerun-if-config-var-change.md
@@ -0,0 +1,5 @@
+---
+"tauri-build": patch
+---
+
+Rerun build script if `TAURI_CONFIG` environment variable change.
diff --git a/core/tauri-build/src/lib.rs b/core/tauri-build/src/lib.rs
index 33c829dd8..2adc2f552 100644
--- a/core/tauri-build/src/lib.rs
+++ b/core/tauri-build/src/lib.rs
@@ -154,6 +154,7 @@ pub fn try_build(attributes: Attributes) -> Result<()> {
   use cargo_toml::{Dependency, Manifest};
   use tauri_utils::config::{Config, TauriConfig};
 
+  println!("cargo:rerun-if-env-changed=TAURI_CONFIG");
   println!("cargo:rerun-if-changed=tauri.conf.json");
   #[cfg(feature = "config-json5")]
   println!("cargo:rerun-if-changed=tauri.conf.json5");