diff --git a/build/src/command/local.rs b/build/src/command/local.rs
index e2fd3522..e46c7960 100644
--- a/build/src/command/local.rs
+++ b/build/src/command/local.rs
@@ -27,9 +27,7 @@ pub(crate) fn create_local_command(
     //    toolchain.
     command
         .current_dir(canonicalized_program_dir)
-        .env("RUSTUP_TOOLCHAIN", "nightly-2023-04-06")
         .env("CARGO_ENCODED_RUSTFLAGS", get_rust_compiler_flags())
-        .env_remove("RUSTC")
         .env(
             "CARGO_TARGET_DIR",
             program_metadata.target_directory.join(HELPER_TARGET_SUBDIR),
diff --git a/build/src/command/utils.rs b/build/src/command/utils.rs
index 900fb6c5..db92fecd 100644
--- a/build/src/command/utils.rs
+++ b/build/src/command/utils.rs
@@ -45,13 +45,17 @@ pub(crate) fn get_program_build_args(args: &BuildArgs) -> Vec<String> {
 pub(crate) fn get_rust_compiler_flags() -> String {
     let rust_flags = [
         "-C".to_string(),
-        "target-cpu=mips32".to_string(),
-        "--cfg".to_string(),
-        "target_os=\"zkvm\"".to_string(),
+        "target-cpu=mips2".to_string(),
         "-C".to_string(),
         "target-feature=+crt-static".to_string(),
         "-C".to_string(),
+        "link-arg=-nostdlib".to_string(),
+        "-C".to_string(),
         "link-arg=-g".to_string(),
+        //"-C".to_string(),
+        //"link-arg=-nostartfiles".to_string(),
+        "-C".to_string(),
+        "link-arg=--entry=main".to_string(),
     ];
     rust_flags.join("\x1f")
 }
diff --git a/build/src/lib.rs b/build/src/lib.rs
index dda41ce2..55a4a061 100644
--- a/build/src/lib.rs
+++ b/build/src/lib.rs
@@ -6,8 +6,8 @@ pub use build::execute_build_program;
 
 use clap::Parser;
 
-pub const BUILD_TARGET: &str = "mips-unknown-linux-musl";
-//pub const DEFAULT_TAG: &str = "v1.0.0";
+pub const BUILD_TARGET: &str = "mips-zkm-zkvm-elf";
+// const DEFAULT_TAG: &str = "v1.0.0";
 pub const DEFAULT_OUTPUT_DIR: &str = "elf";
 pub const HELPER_TARGET_SUBDIR: &str = "elf-compilation";
 
diff --git a/prover/examples/revme/host/src/main.rs b/prover/examples/revme/host/src/main.rs
index cc3af0e9..6e29d717 100644
--- a/prover/examples/revme/host/src/main.rs
+++ b/prover/examples/revme/host/src/main.rs
@@ -215,7 +215,7 @@ fn prove_multi_seg_common(
     result
 }
 
-const ELF_PATH: &str = "../guest/elf/mips-unknown-linux-musl";
+const ELF_PATH: &str = "../guest/elf/mips-zkm-zkvm-elf";
 
 fn prove_revm() {
     // 1. split ELF into segs
diff --git a/prover/examples/sha2-precompile/host/src/main.rs b/prover/examples/sha2-precompile/host/src/main.rs
index 1b0c2a93..dd9adc59 100644
--- a/prover/examples/sha2-precompile/host/src/main.rs
+++ b/prover/examples/sha2-precompile/host/src/main.rs
@@ -20,7 +20,7 @@ const D: usize = 2;
 type C = PoseidonGoldilocksConfig;
 type F = <C as GenericConfig<D>>::F;
 
-const ELF_PATH: &str = "../guest/elf/mips-unknown-linux-musl";
+const ELF_PATH: &str = "../guest/elf/mips-zkm-zkvm-elf";
 
 fn u32_array_to_u8_vec(u32_array: &[u32; 8]) -> Vec<u8> {
     let mut u8_vec = Vec::with_capacity(u32_array.len() * 4);
diff --git a/prover/examples/sha2-rust/host/src/main.rs b/prover/examples/sha2-rust/host/src/main.rs
index 81f71caf..bae10e1f 100644
--- a/prover/examples/sha2-rust/host/src/main.rs
+++ b/prover/examples/sha2-rust/host/src/main.rs
@@ -214,7 +214,7 @@ fn prove_multi_seg_common(
     result
 }
 
-const ELF_PATH: &str = "../guest/elf/mips-unknown-linux-musl";
+const ELF_PATH: &str = "../guest/elf/mips-zkm-zkvm-elf";
 
 fn prove_sha2_rust() {
     // 1. split ELF into segs