diff --git a/proftpd/contrib/mod_sql_postgres.c b/proftpd/contrib/mod_sql_postgres.c
index 5f3fb4867..cdfe11f6a 100644
--- a/proftpd/contrib/mod_sql_postgres.c
+++ b/proftpd/contrib/mod_sql_postgres.c
@@ -36,7 +36,7 @@
 #include "conf.h"
 #include "../contrib/mod_sql.h"
 
-#include <libpq-fe.h>
+#include <pgsql/libpq-fe.h>
 #if defined(HAVE_POSTGRES_PQGETSSL) && defined(PR_USE_OPENSSL)
 # include <openssl/ssl.h>