[BUGFIX] Correct wrong namespace

Change-Id: I4c4399b332dc6f2bc7336034f0245ad07421a0b0
Releases: 3.0
Resolves: #61497
Reviewed-on: http://review.typo3.org/32696
Reviewed-by: Fabien Udriot <fabien.udriot@ecodev.ch>
Tested-by: Fabien Udriot <fabien.udriot@ecodev.ch>