diff --git a/bin/pgut/pgut.h b/bin/pgut/pgut.h
index c33f389..e8816d3 100644
--- a/bin/pgut/pgut.h
+++ b/bin/pgut/pgut.h
@@ -24,6 +24,10 @@
 
 #define INFINITE_STR		"INFINITE"
 
+#ifdef _MSC_VER
+#define __attribute__(x)
+#endif
+
 typedef enum YesNo
 {
 	DEFAULT,
diff --git a/lib/pgut/pgut-spi.h b/lib/pgut/pgut-spi.h
index 5406b36..c5ce52f 100644
--- a/lib/pgut/pgut-spi.h
+++ b/lib/pgut/pgut-spi.h
@@ -12,6 +12,10 @@
 
 #include "executor/spi.h"
 
+#ifdef _MSC_VER
+#define __attribute__(x)
+#endif
+
 extern void execute(int expected, const char *sql);
 extern void execute_plan(int expected, SPIPlanPtr plan, Datum *values, const char *nulls);
 extern void execute_with_format(int expected, const char *format, ...)