diff --git a/OSBindings/Mac/Clock SignalTests/Comparative68000.hpp b/OSBindings/Mac/Clock SignalTests/Comparative68000.hpp
index b85e97248..73bb0c4a4 100644
--- a/OSBindings/Mac/Clock SignalTests/Comparative68000.hpp	
+++ b/OSBindings/Mac/Clock SignalTests/Comparative68000.hpp	
@@ -32,7 +32,7 @@ class ComparativeBusHandler: public CPU::MC68000Mk2::BusHandler {
 			// Generate state locally.
 			const auto state = get_state().registers;
 			char local_state[300];
-			sprintf(local_state, "%04x: %02x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
+			snprintf(local_state, sizeof(local_state), "%04x: %02x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
 				address,
 				state.status,
 				state.data[0], state.data[1], state.data[2], state.data[3], state.data[4], state.data[5], state.data[6], state.data[7],