diff --git a/app-emacs/geiser-guile/geiser-guile-0.28.3-r101.ebuild b/app-emacs/geiser-guile/geiser-guile-0.28.3-r101.ebuild
index 62f93ed61f0e..0127c7c89cc9 100644
--- a/app-emacs/geiser-guile/geiser-guile-0.28.3-r101.ebuild
+++ b/app-emacs/geiser-guile/geiser-guile-0.28.3-r101.ebuild
@@ -27,9 +27,10 @@ BDEPEND="
 	app-emacs/geiser
 	app-emacs/transient
 "
+# Only calls 'guile' at runtime.
 RDEPEND="
 	${BDEPEND}
-	dev-scheme/guile
+	dev-scheme/guile:*
 "
 
 PATCHES=( "${FILESDIR}/${PN}-guile-scheme-src-dir.patch" )