A fungicidal composition comprisingA) 1-(4-chlorophenyl)-4,4-dimethyl-3-(1,2,4-triazol-1-yl-methyl)-pentan-3-olof the formula ##STR1## and B) at least one guanidated aliphatic polyamine of the formula ##STR2## in which R.sup.1 represents a branched or unbranched, divalent aliphatic hydrocarbon radical having 3 to 14 carbon atoms,R.sup.2 represents a branched or unbranched, divalent aliphatic hydrocarbon radical having 3 to 14 carbon atoms,X.sup.1, X.sup.2 and X.sup.3 independently of one another represent hydrogen or the radical of the formula ##STR3## and n represents integers from 0 to 16, it being possible for the divalent aliphatic hydrocarbon radicals which represents R.sup.2 to be different from one another if n represents numbers larger than 1, or their acid addition salts.