diff --git a/runtime/caml/misc.h b/runtime/caml/misc.h
index 6aa98516b..8184c2797 100644
--- a/runtime/caml/misc.h
+++ b/runtime/caml/misc.h
@@ -327,7 +327,6 @@ extern void caml_set_fields (intnat v, uintnat, uintnat);
 
 #if defined(_WIN32) && !defined(_UCRT)
 extern int caml_snprintf(char * buf, size_t size, const char * format, ...);
-#define snprintf caml_snprintf
 #endif
 
 #ifdef CAML_INSTR
@@ -336,6 +335,12 @@ extern int caml_snprintf(char * buf, size_t size, const char * format, ...);
 #include <time.h>
 #include <stdio.h>
 
+/* snprintf emulation for Win32 - do define after stdio.h, in case snprintf is defined */
+
+#if defined(_WIN32) && !defined(_UCRT)
+#define snprintf caml_snprintf
+#endif
+
 extern intnat caml_stat_minor_collections;
 extern intnat caml_instr_starttime, caml_instr_stoptime;