diff --git a/BioArchLinux/r-lme4/PKGBUILD b/BioArchLinux/r-lme4/PKGBUILD
index 9990a44c52..40f61546d6 100644
--- a/BioArchLinux/r-lme4/PKGBUILD
+++ b/BioArchLinux/r-lme4/PKGBUILD
@@ -15,6 +15,7 @@ license=('GPL-2.0-or-later')
 depends=(
   r-minqa
   r-nloptr
+  r-reformulas
 )
 makedepends=(
   r-rcpp