diff --git a/Cargo.toml b/Cargo.toml
index 19106a61..f5c708df 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -47,6 +47,7 @@ traditional_chinese = [
     "erg_parser/traditional_chinese",
     "erg_compiler/traditional_chinese",
 ]
+no_build_rs = ["erg_compiler/no_build_rs"]
 pre-commit = []
 
 [dependencies]
diff --git a/compiler/erg_compiler/Cargo.toml b/compiler/erg_compiler/Cargo.toml
index 618c16ec..591f381b 100644
--- a/compiler/erg_compiler/Cargo.toml
+++ b/compiler/erg_compiler/Cargo.toml
@@ -22,6 +22,7 @@ traditional_chinese = [
     "erg_common/traditional_chinese",
     "erg_parser/traditional_chinese",
 ]
+no_build_rs = []
 
 [dependencies]
 erg_common = { version = "0.5.9", path = "../erg_common" }
diff --git a/compiler/erg_compiler/build.rs b/compiler/erg_compiler/build.rs
index d9aecdd5..57e47670 100644
--- a/compiler/erg_compiler/build.rs
+++ b/compiler/erg_compiler/build.rs
@@ -5,6 +5,9 @@ use std::fs;
 use std::path;
 
 fn main() -> std::io::Result<()> {
+    if cfg!(feature = "no_build_rs") {
+        return Ok(());
+    }
     // Create a ".erg" directory
     let erg_path = env::home_dir()
         .expect("failed to get the location of the home dir")
diff --git a/compiler/erg_compiler/codegen.rs b/compiler/erg_compiler/codegen.rs
index 4fef9b24..27ab7215 100644
--- a/compiler/erg_compiler/codegen.rs
+++ b/compiler/erg_compiler/codegen.rs
@@ -2051,27 +2051,36 @@ impl CodeGenerator {
     }
 
     fn load_prelude_py(&mut self) {
-        self.emit_global_import_items(
-            Identifier::public("sys"),
-            vec![(
-                Identifier::public("path"),
-                Some(Identifier::private("#path")),
-            )],
-        );
-        self.emit_load_name_instr(Identifier::private("#path"));
-        self.emit_load_method_instr("Array!", None, Identifier::public("push!"));
-        self.emit_load_const(env!("ERG_STD_PATH"));
-        self.write_instr(CALL_METHOD);
-        self.write_arg(1u8);
-        self.stack_dec();
-        self.emit_pop_top();
-        self.emit_global_import_items(
-            Identifier::public("_erg_std_prelude"),
-            vec![(
-                Identifier::public("in_operator"),
-                Some(Identifier::private("#in_operator")),
-            )],
-        );
+        if let Some(std_path) = option_env!("ERG_STD_PATH") {
+            self.emit_global_import_items(
+                Identifier::public("sys"),
+                vec![(
+                    Identifier::public("path"),
+                    Some(Identifier::private("#path")),
+                )],
+            );
+            self.emit_load_name_instr(Identifier::private("#path"));
+            self.emit_load_method_instr("Array!", None, Identifier::public("push!"));
+            self.emit_load_const(std_path);
+            self.write_instr(CALL_METHOD);
+            self.write_arg(1u8);
+            self.stack_dec();
+            self.emit_pop_top();
+            self.emit_global_import_items(
+                Identifier::public("_erg_std_prelude"),
+                vec![(
+                    Identifier::public("in_operator"),
+                    Some(Identifier::private("#in_operator")),
+                )],
+            );
+        } else {
+            self.emit_load_name_instr(Identifier::private("exec"));
+            self.emit_load_const(include_str!("std/_erg_std_prelude.py"));
+            self.write_instr(CALL_FUNCTION);
+            self.write_arg(1u8);
+            self.stack_dec();
+            self.emit_pop_top();
+        }
     }
 
     fn load_record_type(&mut self) {