The district court in Borås in western Sweden originally sentenced the man to three and a half years in prison for serious drug crimes.
However, the court acquitted him of the most serious charge stemming from 18 kilogrammes of amphetamines, which was ordered and delivered by a Polish courier, the Göteborgs-Posten (GP) newspaper reported.
The 57-year-old nevertheless appealed the original conviction, but rather than handing down a lighter sentence, the court of appeal slapped an additional seven and a half years onto the man's sentence.
According to the appeals court, the man was something of a ringleader for the drug smuggling operation, and thus deserved a stiffer penalty.
Having one's sentence lengthened to such an extent up appeal – in this case, nearly tripling the man's prison term to 11 years – is extremely rare within the Swedish judicial system, according to GP.
In addition to a tougher sentence for the 57-year-old, the 39-year-old Polish courier also had his sentenced lengthened from eight to ten years in prison.
The sentence of 50-year-old woman involved in the operation remained unchanged at four years in prison, while the acquittal of a 63-year-old woman was also upheld by the appeals court.