diff --git a/pyuno/source/module/pyuno_dlopenwrapper.c b/pyuno/source/module/pyuno_dlopenwrapper.c
index 01386e6ead4d..3bdc912f95bd 100644
--- a/pyuno/source/module/pyuno_dlopenwrapper.c
+++ b/pyuno/source/module/pyuno_dlopenwrapper.c
@@ -26,6 +26,10 @@
  *
  ************************************************************************/
 
+/* make Python.h go first as a hack to work around _POSIX_C_SOURCE redefinition
+   warnings: */
+#include "Python.h"
+
 #include "sal/config.h"
 
 #include <stdlib.h>
@@ -36,8 +40,6 @@
 #endif
 #include <dlfcn.h>
 
-#include "Python.h"
-
 #include "rtl/string.h"
 
 /* A wrapper around libpyuno.so, making sure the latter is loaded RTLD_GLOBAL