  In a recent paper Brown et al. (2018) analyze the spectral properties of the
globular cluster 47 Tucanae (47 Tuc) using 9 years of Fermi-LAT data. Brown et
al. (2018) argue that the emission from 47 Tuc cannot be explained by
millisecond pulsars (MSPs) alone because of a significant discrepancy between
the MSP spectral properties and those of 47 Tuc. It is argued that there is a
significant ($>5\sigma$) preference for a two source scenario. The second
component could be from the annihilation of dark matter in a density spike
surrounding the intermediate-mass black hole candidate in 47 Tuc. In this paper
we argue that the claimed discrepancy arises because Brown et al. (2017) use a
stacked MSP spectrum to model the emission from MSPs in 47 Tuc which is
insufficient to account for the uncertainties in the spectrum of the MSPs in 47
Tuc. Contrary to the claims by Brown et al. (2018), we show that the
significance of an additional dark matter component is $\lesssim 2\sigma$ when
sample variance in the spectrum of a population of MSPs is accounted for. The
spectrum of 47 Tuc is compatible with that of a population of MSPs similar to
the disk population.
