diff --git a/applications/tari_app_utilities/src/lib.rs b/applications/tari_app_utilities/src/lib.rs
index 35e3c2c343..caf86223f7 100644
--- a/applications/tari_app_utilities/src/lib.rs
+++ b/applications/tari_app_utilities/src/lib.rs
@@ -28,3 +28,13 @@ pub mod consts {
     // Import the auto-generated const values from the Manifest and Git
     include!(concat!(env!("OUT_DIR"), "/consts.rs"));
 }
+
+/// Non-64-bit architectures are untested. Depending on the application, it may not compile already or could be various
+/// classes of bugs (overflows, crashes, etc). Use this macro to explicitly fail compilation on non-64-bit targets.
+#[macro_export]
+macro_rules! deny_non_64_bit_archs {
+    () => {
+        #[cfg(not(target_pointer_width = "64"))]
+        compile_error!("Only 64-bit architectures are supported");
+    };
+}
diff --git a/applications/tari_base_node/src/lib.rs b/applications/tari_base_node/src/lib.rs
index a7ce66c080..cc4dd91bcb 100644
--- a/applications/tari_base_node/src/lib.rs
+++ b/applications/tari_base_node/src/lib.rs
@@ -20,6 +20,9 @@
 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 // USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// non-64-bit not supported
+tari_app_utilities::deny_non_64_bit_archs!();
+
 #[macro_use]
 mod table;
 
diff --git a/applications/tari_console_wallet/src/lib.rs b/applications/tari_console_wallet/src/lib.rs
index a09fac944b..8437136020 100644
--- a/applications/tari_console_wallet/src/lib.rs
+++ b/applications/tari_console_wallet/src/lib.rs
@@ -20,6 +20,9 @@
 //  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 //  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// non-64-bit not supported
+tari_app_utilities::deny_non_64_bit_archs!();
+
 mod automation;
 mod cli;
 mod config;
diff --git a/applications/tari_merge_mining_proxy/src/lib.rs b/applications/tari_merge_mining_proxy/src/lib.rs
index 8c5291ffdd..1f23171b50 100644
--- a/applications/tari_merge_mining_proxy/src/lib.rs
+++ b/applications/tari_merge_mining_proxy/src/lib.rs
@@ -20,6 +20,9 @@
 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 // USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// non-64-bit not supported
+tari_app_utilities::deny_non_64_bit_archs!();
+
 mod block_template_data;
 mod block_template_protocol;
 mod cli;
diff --git a/applications/tari_miner/src/lib.rs b/applications/tari_miner/src/lib.rs
index 7e6aee674b..89a45fcdbc 100644
--- a/applications/tari_miner/src/lib.rs
+++ b/applications/tari_miner/src/lib.rs
@@ -20,6 +20,9 @@
 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 // USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// non-64-bit not supported
+tari_app_utilities::deny_non_64_bit_archs!();
+
 mod cli;
 pub use cli::Cli;
 use tari_common::exit_codes::ExitError;