diff --git a/crates/tests/src/vm_host_env/tx.rs b/crates/tests/src/vm_host_env/tx.rs
index aeb399c8d3..5e39ead354 100644
--- a/crates/tests/src/vm_host_env/tx.rs
+++ b/crates/tests/src/vm_host_env/tx.rs
@@ -339,7 +339,7 @@ mod native_tx_host_env {
             ( $fn:ident ( $($arg:ident : $type:ty),* $(,)?) ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) {
                         with(|TestTxEnv {
                                 state,
                                 iterators,
@@ -384,7 +384,7 @@ mod native_tx_host_env {
             ( $fn:ident ( $($arg:ident : $type:ty),* $(,)?) -> $ret:ty ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) -> $ret {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) -> $ret {
                         with(|TestTxEnv {
                                 tx_index,
                                 state,
@@ -429,7 +429,7 @@ mod native_tx_host_env {
             ( "non-result", $fn:ident ( $($arg:ident : $type:ty),* $(,)?) ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) {
                         with(|TestTxEnv {
                                 state,
                                 iterators,
diff --git a/crates/tests/src/vm_host_env/vp.rs b/crates/tests/src/vm_host_env/vp.rs
index 5fa7d04461..8b88009376 100644
--- a/crates/tests/src/vm_host_env/vp.rs
+++ b/crates/tests/src/vm_host_env/vp.rs
@@ -226,7 +226,7 @@ mod native_vp_host_env {
             ( $fn:ident ( $($arg:ident : $type:ty),* $(,)?) ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) {
                         with(|TestVpEnv {
                                 addr,
                                 state,
@@ -271,7 +271,7 @@ mod native_vp_host_env {
             ( $fn:ident ( $($arg:ident : $type:ty),* $(,)?) -> $ret:ty ) => {
                 concat_idents!(extern_fn_name = namada, _, $fn {
                     #[no_mangle]
-                    extern "C" fn extern_fn_name( $($arg: $type),* ) -> $ret {
+                    extern "C-unwind" fn extern_fn_name( $($arg: $type),* ) -> $ret {
                         with(|TestVpEnv {
                                 addr,
                                 state,