diff --git a/src/util.cc b/src/util.cc
index ce4f74cc0b..9c73c33deb 100644
--- a/src/util.cc
+++ b/src/util.cc
@@ -5,17 +5,6 @@
 
 #include "zeek/util.h"
 
-#ifdef TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# ifdef HAVE_SYS_TIME_H
-#  include <sys/time.h>
-# else
-#  include <time.h>
-# endif
-#endif
-
 #ifdef HAVE_DARWIN
 #include <mach/task.h>
 #include <mach/mach_init.h>
diff --git a/src/util.h b/src/util.h
index a4d5c6a524..4da4a10735 100644
--- a/src/util.h
+++ b/src/util.h
@@ -29,6 +29,17 @@
 #include <vector>
 #include <memory> // std::unique_ptr
 
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# ifdef HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
 #ifdef DEBUG
 
 #include <assert.h>