diff --git a/src/hyperlight_guest/third_party/musl/arch/x86_64/bits/setjmp.h b/src/hyperlight_guest/third_party/musl/arch/x86_64/bits/setjmp.h
new file mode 100644
index 000000000..63973a800
--- /dev/null
+++ b/src/hyperlight_guest/third_party/musl/arch/x86_64/bits/setjmp.h
@@ -0,0 +1 @@
+typedef unsigned long __jmp_buf[8];
diff --git a/src/hyperlight_host/Cargo.toml b/src/hyperlight_host/Cargo.toml
index e0b075a82..02d8b75f3 100644
--- a/src/hyperlight_host/Cargo.toml
+++ b/src/hyperlight_host/Cargo.toml
@@ -41,6 +41,7 @@ thiserror = "2.0.12"
 tempfile = { version = "3.20", optional = true }
 anyhow = "1.0"
 metrics = "0.24.2"
+serde_json = "1.0"
 
 [target.'cfg(windows)'.dependencies]
 windows = { version = "0.61", features = [
diff --git a/src/hyperlight_host/src/error.rs b/src/hyperlight_host/src/error.rs
index 64697bb4b..b666d146f 100644
--- a/src/hyperlight_host/src/error.rs
+++ b/src/hyperlight_host/src/error.rs
@@ -155,6 +155,10 @@ pub enum HyperlightError {
     #[cfg(kvm)]
     KVMError(#[from] kvm_ioctls::Error),
 
+    /// Conversion of str to Json failed
+    #[error("Conversion of str data to json failed")]
+    JsonConversionFailure(#[from] serde_json::Error),
+
     /// An attempt to get a lock from a Mutex failed.
     #[error("Unable to lock resource")]
     LockAttemptFailed(String),