N-[2-(Haloalkoxy)phenyl]heteroarylcarboxamides of the formula I, where n=0 or 1, Hal=halogen, X=C2-C4-haloalkyl, Het=a pyrazole, thiazole or pyridine radical (a), (b) or (c), where R1=C1-C4-alkyl or C1-C4-haloalkyl, R2=hydrogen or halogen, R3=C1-C4-alkyl or C1-C4-haloalkyl and R5=halogen, C1-C4-alkyl or C1-C4-haloalkyl; except for N-[2-(1,1,2,2-tetrafluoroethoxy)phenyl]-1,3-dimethylpyrazol-4-yl-carboxamide, N-[2-(1,1,2,2-tetrafluoroethoxy)phenyl]-3-trifluoromethyl-1-methylpyrazol-4-yl-carboxamide and N-[2-(2,2,2-trifluorethoxy)phenyl]-3-trifluormethyl-1-methylpyrazol-4-yl-carboxamide. A fungicidal composition comprising at least one compound I, the use of the compounds I for preparing a composition suitable for controlling harmful fungi, a method for controlling harmful fungi using the compounds I and also seed comprising at least one compound I.