diff --git a/dev-libs/libgcrypt/libgcrypt-1.8.3-r1.ebuild b/dev-libs/libgcrypt/libgcrypt-1.8.3-r1.ebuild
index 4f3b5d971968f..02488a6c3c145 100644
--- a/dev-libs/libgcrypt/libgcrypt-1.8.3-r1.ebuild
+++ b/dev-libs/libgcrypt/libgcrypt-1.8.3-r1.ebuild
@@ -56,7 +56,8 @@ multilib_src_configure() {
 
 		GPG_ERROR_CONFIG="${EROOT}/usr/bin/${CHOST}-gpg-error-config"
 	)
-	ECONF_SOURCE="${S}" econf "${myeconfargs[@]}"
+	ECONF_SOURCE="${S}" econf "${myeconfargs[@]}" \
+		$("${S}/configure" --help | grep -- --with-.*-prefix | sed -e 's/prefix.*/prefix/' -e "s#\$#=${EROOT}/usr#")
 }
 
 multilib_src_compile() {