diff --git a/gnome-remote-desktop.spec b/gnome-remote-desktop.spec
index 6676f43..ec23ff7 100644
--- a/gnome-remote-desktop.spec
+++ b/gnome-remote-desktop.spec
@@ -1,5 +1,7 @@
 %global systemd_unit gnome-remote-desktop.service
 
+%global tarball_version %%(echo %{version} | tr '~' '.')
+
 Name:           gnome-remote-desktop
 Version:        40.0
 Release:        1%{?dist}
@@ -7,7 +9,7 @@ Summary:        GNOME Remote Desktop screen share service
 
 License:        GPLv2+
 URL:            https://gitlab.gnome.org/jadahl/gnome-remote-desktop
-Source0:        https://download.gnome.org/sources/gnome-remote-desktop/40/gnome-remote-desktop-40.0.tar.xz
+Source0:        https://download.gnome.org/sources/gnome-remote-desktop/40/%{name}-%{tarball_version}.tar.xz
 
 # Adds encryption support (requires patched LibVNCServer)
 Patch0:         gnutls-anontls.patch
@@ -42,7 +44,7 @@ GNOME desktop environment.
 
 
 %prep
-%autosetup -S git -n %{name}-40.0
+%autosetup -S git -n %{name}-%{tarball_version}
 
 
 %build