Lewis Baker's first-half goal proved enough as Stoke extended their unbeaten league run to seven matches with a narrow 1-0 victory at Championship bottom side Rotherham.
The Potters have not lost since a home defeat to Sheffield Wednesday on December 9, which cost former boss Alex Neil his job.
New manager Steven Schumacher secured his second victory in the hotseat thanks to Baker's stunning free-kick.
Quick thinking from Viktor Johansson denied an early chance for Baker, who had been put through on goal by a smart ball from Ryan Mmaee.
Rotherham's first attempt on goal came from former Stoke man Sam Clucas and his speculative drive from distance took a slight deflection before whistling just wide
Andre Vidigal then forced a save out of Johansson with a powerful shot from the edge of the box.
Stoke took the lead in the fourth minute of first-half stoppage-time, with Baker lashing in an unstoppable free-kick from the edge of the box.
A sweeping move almost yielded a second for the visitors early in the second half with Sead Haksabanovic leading the charge and finding Vidigal, who fired over the top.
Rotherham were upping the pressure around the hour mark and a low corner from Ollie Rathbone caused trouble for the Stoke defence. The ball fell to Christ Tiehi at the back post but his effort landed on the roof of the net.
The visiting side seemed content to keep hold of the ball and their solitary goal lead.
It was a dangerous game to play and the Millers tried to threaten their lead, with the introduction of big striker Tom Eaves giving them a more direct option.
New Stoke signing Luke Cundle - who was on loan at Schumacher's former club Plymouth for the first half of the season - got in a tangle when attempting to prod past Johansson from Vidigal's pass.
Rotherham had six minutes of added on time to try and grab an equaliser and reliable substitute Georgie Kelly was brought on to spearhead their attacks.
Stoke had a big chance to put the game to bed moments later when Vidigal found space in the box but his shot was palmed out by Johansson and ran away from substitute Tyrese Campbell, who was lying in wait for a tap-in.
Vidigal caught Seb Revan in possession with the game's last attack but a desperate challenge from Cohen Bramall denied him a clean strike on goal.