diff --git a/BioArchLinux/r-bfpack/PKGBUILD b/BioArchLinux/r-bfpack/PKGBUILD
index 7ae9eb4a8f..025e4b1b8b 100644
--- a/BioArchLinux/r-bfpack/PKGBUILD
+++ b/BioArchLinux/r-bfpack/PKGBUILD
@@ -11,6 +11,7 @@ arch=('x86_64')
 url="https://cran.r-project.org/package=$_pkgname"
 license=('GPL-3.0-or-later')
 depends=(
+  nlopt
   r-bain
   r-mvtnorm
   r-pracma