diff --git a/contrib/guix/guix-build b/contrib/guix/guix-build
index ac7888409e4..9c78c2a2a0b 100755
--- a/contrib/guix/guix-build
+++ b/contrib/guix/guix-build
@@ -294,14 +294,6 @@ for host in $HOSTS; do
     make -C "${PWD}/depends" -j"$JOBS" download-"$(host_to_commonname "$host")" ${V:+V=1} ${SOURCES_PATH:+SOURCES_PATH="$SOURCES_PATH"}
 done
 
-# Usage: outdir_for_host HOST SUFFIX
-#
-#   HOST: The current platform triple we're building for
-#
-outdir_for_host() {
-    echo "${OUTDIR_BASE}/${1}${2:+-${2}}"
-}
-
 # Usage: profiledir_for_host HOST SUFFIX
 #
 #   HOST: The current platform triple we're building for
diff --git a/contrib/guix/guix-codesign b/contrib/guix/guix-codesign
index 8c8682ddd0a..230499c0596 100755
--- a/contrib/guix/guix-codesign
+++ b/contrib/guix/guix-codesign
@@ -146,15 +146,6 @@ fi
 # Codesigning tarballs SHOULD exist
 ################
 
-# Usage: outdir_for_host HOST SUFFIX
-#
-#   HOST: The current platform triple we're building for
-#
-outdir_for_host() {
-    echo "${OUTDIR_BASE}/${1}${2:+-${2}}"
-}
-
-
 codesigning_tarball_for_host() {
     case "$1" in
         *mingw*)
diff --git a/contrib/guix/libexec/prelude.bash b/contrib/guix/libexec/prelude.bash
index 166675e8bf0..fbebd2a1aee 100644
--- a/contrib/guix/libexec/prelude.bash
+++ b/contrib/guix/libexec/prelude.bash
@@ -80,6 +80,14 @@ time-machine() {
                       -- "$@"
 }
 
+# Usage: outdir_for_host HOST [SUFFIX]
+#
+#   HOST: The current platform triple we're building for
+#   SUFFIX: Optional. If provided, appended to the directory name as "-SUFFIX"
+#
+outdir_for_host() {
+    echo "${OUTDIR_BASE}/${1}${2:+-${2}}"
+}
 
 ################
 # Set common variables