This fixes a regression introduced in 52cb5cf5b8 ("gnu: icedove: Update to 91.3.2") where the single quotes moved to double quotes, but the substitute* pattern was not correctly adapted. Fixes <https://issues.guix.gnu.org/53250>. * gnu/packages/gnuzilla.scm (icedove-minimal) [phases] {fix-profile-setting}: Include double qutoes in substitute* pattern targeting the MOZ_DEDICATED_PROFILES configuration option.