diff --git a/src/util/meson.build b/src/util/meson.build
index e5283ff7f79..6cb2a5323ad 100644
--- a/src/util/meson.build
+++ b/src/util/meson.build
@@ -340,6 +340,7 @@ if with_tests
     'tests/roundeven_test.cpp',
     'tests/set_test.cpp',
     'tests/sparse_array_test.cpp',
+    'tests/timespec_test.cpp',
     'tests/u_atomic_test.cpp',
     'tests/u_debug_stack_test.cpp',
     'tests/u_printf_test.cpp',
@@ -354,12 +355,6 @@ if with_tests
     )
   endif
 
-  if cc.has_header('sys/time.h')  # MinGW has this, but Vanilla windows doesn't
-    files_util_tests += files(
-      'tests/timespec_test.cpp'
-    )
-  endif
-
   # FIXME: this test crashes on windows
   if host_machine.system() != 'windows'
     files_util_tests += files(
diff --git a/src/util/timespec.h b/src/util/timespec.h
index 83411090ffa..8590f657e3f 100644
--- a/src/util/timespec.h
+++ b/src/util/timespec.h
@@ -34,9 +34,9 @@
 
 #include <stdint.h>
 #include <assert.h>
-#include <time.h>
 #include <stdbool.h>
 
+#include "c11/time.h"
 #include "macros.h"
 
 #define NSEC_PER_SEC 1000000000