diff --git a/src/grib_api_internal.h b/src/grib_api_internal.h
index 553a44374..5bd5fb053 100644
--- a/src/grib_api_internal.h
+++ b/src/grib_api_internal.h
@@ -55,6 +55,11 @@ extern "C" {
  #endif
 #endif
 
+#ifdef ECCODES_ON_WINDOWS
+  #define _CRT_SECURE_NO_WARNINGS
+  #define _CRT_NONSTDC_NO_DEPRECATE
+#endif
+
 #include <stdio.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -96,8 +101,6 @@ extern "C" {
  #define mkdir(dirname, mode) _mkdir(dirname)
 
  #ifdef _MSC_VER
-  #define _CRT_SECURE_NO_WARNINGS
-  #define _CRT_NONSTDC_NO_DEPRECATE
   #define access(path, mode) _access(path, mode)
   #define chmod(path, mode) _chmod(path, mode)
   #define strdup(str) _strdup(str)