diff --git a/src/sql/drivers/psql/qsql_psql.cpp b/src/sql/drivers/psql/qsql_psql.cpp
index 7fe1a91..afa2593 100644
--- a/src/sql/drivers/psql/qsql_psql.cpp
+++ b/src/sql/drivers/psql/qsql_psql.cpp
@@ -58,7 +58,10 @@
 # undef errno
 #endif
 #define errno qt_psql_errno
+// HACK: PostgreSQL has its own strict Param
+#define Param q_pgsql_Param
 #include <catalog/pg_type.h>
+#undef Param
 #undef errno
 #ifdef open
 # undef open
@@ -147,8 +147,12 @@ static QVariant::Type qDecodePSQLType( int t )
     case FLOAT8OID      :
 	type = QVariant::Double;
 	break;
+#ifdef ABSTIMEOID // gone in PostgreSQL 12
     case ABSTIMEOID     :
+#endif
+#ifdef RELTIMEOID // gone in PostgreSQL 12
     case RELTIMEOID     :
+#endif
     case DATEOID	:
 	type = QVariant::Date;
 	break;