diff --git a/contrib/guix/INSTALL.md b/contrib/guix/INSTALL.md
index 75f2e1272b..63aa3e02b2 100644
--- a/contrib/guix/INSTALL.md
+++ b/contrib/guix/INSTALL.md
@@ -79,8 +79,8 @@ Guix v1.2.0 is available as a distribution package starting in [Debian
 21.04](https://packages.ubuntu.com/hirsute/guix).
 
 Note that if you intend on using Guix without using any substitutes (more
-details [here][security-model]), v1.2.0 has a known problems when building
-GnuTLS from source. Solutions and workarounds are documented
+details [here][security-model]), v1.2.0 has a known problem when building GnuTLS
+from source. Solutions and workarounds are documented
 [here](#gnutls-test-suite-fail-status-request-revoked).
 
 
@@ -270,23 +270,11 @@ Note that these environment variables are used to check for packages during
 `./configure`, so they should be set as soon as possible should you want to use
 a prefix other than `/usr`.
 
-<!-- ##### Example: Consistently using Guile 3.0 on Ubuntu -->
-
-<!-- For example, on Ubuntu, if you choose to use Guile 3.0 and install the -->
-<!-- `guile-3.0` package, you want to make sure that if you also want to install the -->
-<!-- `guile-git` package with `apt` that said `guile-git` package was built for Guile -->
-<!-- v3.0. This can be checked by invoking the following: -->
-
-<!-- ``` -->
-<!-- apt update -->
-<!-- apt show guile-git -->
-<!-- ``` -->
-
 #### Building and installing source-built packages
 
-***IMPORTANT**: A few dependencies have non-obvious quirks/erratas which are documented in the
-sub-sections immediately below. Please read these sections before proceeding to
-build and install these packages.*
+***IMPORTANT**: A few dependencies have non-obvious quirks/errata which are
+documented in the sub-sections immediately below. Please read these sections
+before proceeding to build and install these packages.*
 
 Although you should always refer to the README or INSTALL files for the most
 accurate information, most of these dependencies use autoconf-style build
diff --git a/contrib/guix/guix-build b/contrib/guix/guix-build
index f6da8435e9..5a908a507d 100755
--- a/contrib/guix/guix-build
+++ b/contrib/guix/guix-build
@@ -190,7 +190,7 @@ fi
 # Services database must have basic entries
 ################
 
-if ! getent services http https ftp; then
+if ! getent services http https ftp > /dev/null 2>&1; then
 cat << EOF
 ERR: Your system's C library can not find service database entries for at least
      one of the following services: http, https, ftp.