diff --git a/libs/temporal/temporal/superclock.h b/libs/temporal/temporal/superclock.h
index bbf7bc6f71..2e7b0d3694 100644
--- a/libs/temporal/temporal/superclock.h
+++ b/libs/temporal/temporal/superclock.h
@@ -25,6 +25,11 @@
 
 #include "temporal/visibility.h"
 
+#ifdef DEBUG_EARLY_SCTS_USE
+#include <cstdlib>
+#include <csignal>
+#endif
+
 namespace Temporal {
 
 typedef int64_t superclock_t;
@@ -39,9 +44,6 @@ extern bool scts_set;
 
 #ifdef DEBUG_EARLY_SCTS_USE
 
-#include <cstdlib>
-#include <csignal>
-
 static inline superclock_t superclock_ticks_per_second() { if (!scts_set) { raise (SIGUSR2); } return _superclock_ticks_per_second; }
 #else
 static inline superclock_t superclock_ticks_per_second() { return _superclock_ticks_per_second; }