|Fredericks 40||Venue: The Den
TOTTENHAM loanee Ryan Fredericks scored on his debut to hand Ian Holloway a win in his first home game as Millwall boss.
Fredericks, who joined the Lions on Friday morning, netted the only goal when his miscued cross deceived visiting goalkeeper Dean Gerken.
Lee Martin should have made the points safe midway through the second half but blasted over the bar from close range.
Holloway made four changes to the team that started against Huddersfield, with Fredericks, Liam Trotter, Scott Malone and Andy Keogh all coming into the side.
Millwall began the game at a quick tempo and, after Malone's bright run down the left flank, the ball eventually arrived at the feet of Trotter, who curled wide.
In the 20th minute, Martin was caught in two minds after cutting inside from the wing and his cross-shot drifted harmlessly wide of the far post.
Fredericks and Malone were both getting forward at every opportunity and the latter's first-time cross flashed across the face of goal, narrowly in front of onrushing teammates.
Martin shot tamely at Gerken in the 26th minute when perhaps he should have passed to Keogh or Steve Morison, who had made supporting runs either side of him.
David Forde denied Ipswich front pairing David McGoldrick and Daryl Murphy with two saves in quick succession as the visitors began to establish a foothold in the match.
But the deadlock was broken at the other end when Fredericks' high cross looped over Gerken and nestled in the top corner.
Scott McDonald's snapshot sizzled wide moments later as Millwall pushed for a second goal. In first-half injury time Forde was forced off with an injury and replace by Stephen Bywater.
Ipswich came close to equalising four minutes after half time when Tommy Smith's header from a corner was cleared off the line by Martin.
But it was nearly 2-0 to the Lions in the 63rd minute when Morison's blocked shot fell to Malone, whose sweetly-struck half volley flashed inches wide.
Martin spurned an even better chance to double the home side's advantage when he somehow blazed over from inside the six yard box with the goal gaping.
Ipswich substitute Paul Taylor tried his luck with a 25-yard free kick but his shot failed to test Bywater and went a yard wide of the top corner.
Bywater was called into action five minutes from time to keep out Taylor's effort as the Lions ground out a well-deserved victory.