diff --git a/tgt-vvp/vvp_process.c b/tgt-vvp/vvp_process.c
index 14fba22e6..990b89d02 100644
--- a/tgt-vvp/vvp_process.c
+++ b/tgt-vvp/vvp_process.c
@@ -25,6 +25,10 @@
 #endif
 # include  <stdlib.h>
 
+#ifdef __MINGW32__ /* MinGW has inconsistent %p output. */
+#define snprintf _snprintf
+#endif
+
 static int show_statement(ivl_statement_t net, ivl_scope_t sscope);
 
 unsigned local_count = 0;