The constitution of the Liberal National Party (LNP) will be amended to prevent a repeat of the Ian Macfarlane controversy, according to the architect of the merged party.

Mr Macfarlane's move from the Liberals' to the Nationals' party room in Canberra was overruled by the LNP state executive after being approved by his Toowoomba branch.

Queensland parliamentary leader Lawrence Springborg, who was instrumental in the LNP merger in 2008, said the party's rules needed to address the problem.

"This has been an issue that we haven't had to deal with previously," Mr Springborg said.

"There will need to be constitutional considerations because of the unique structure of the LNP.

"There is a different structure in Canberra when (federal) LNP members sit in separate party rooms - either National or Liberal - and we need to consider what happens when people may wish to change allegiances.

"And that of course requires consideration in the rules or the constitution."

The LNP's Queensland president, Gary Spence, said the party was examining options to sensibly deal with the issue if it ever arose again.