Cannot parse a macro containing a perm expression

[fpoli]

Is it possible to apply a perm expression on a parameter of a macro? The following doesn't parse:

define check(expr) {
    assert perm(expr) < write
}

Error message:

Parse error: Expected found "perm(expr) < write\n}", expected predicateInstance | strInteger.filter(viper.silver.parser.FastParser$$$Lambda$1326/408618700@133d64fa) | booltrue | boolfalse | nul | old | result | unExp | "(" ~ exp ~ ")" | accessPred | inhaleExhale | perm | let | quant | forperm | unfolding | applying | collectionTypedEmpty | explicitSetNonEmpty | collectionTypedEmpty | explicitMultisetNonEmpty | collectionTypedEmpty | seqLength | explicitSeqNonEmpty | seqRange | fapp | typedFapp | idnuse | Fail at index 32
    assert perm(expr) < write
           ^ (20210224_113630.vpr@2.12)

By the way, "Expected found" looks like a bug in the construction of error messages.