diff --git a/contrib/oid2name/oid2name.cpp b/contrib/oid2name/oid2name.cpp
index 53db8b15cb7420822802a8b79cbcb1e8ebd48454..18f7238eaa1bf07ae44d3dd190fd9c63d6fa79c9 100644
--- a/contrib/oid2name/oid2name.cpp
+++ b/contrib/oid2name/oid2name.cpp
@@ -11,7 +11,7 @@
 
 extern char* optarg;
 
-#include "libpq-fe.h"
+#include "libpq/libpq-fe.h"
 
 /* an extensible array to keep track of elements to show */
 typedef struct {