diff --git a/audiogame-manager.sh b/audiogame-manager.sh
index 4d3ca94..ef2eb7b 100755
--- a/audiogame-manager.sh
+++ b/audiogame-manager.sh
@@ -757,6 +757,8 @@ game_launcher() {
             exit 0
         fi
         get_bottle "$game"
+        # make sure wine is actually set to something
+        export wine="${wine:-wine}"
         echo -n "launching "
         ${wine} --version
         local winePath="${game#*|}"
@@ -868,8 +870,10 @@ game_launcher() {
         fi
         if [[ -d "${WINEPREFIX}/drive_c/windows/syswow64" ]]; then
             pgrep -u "$USER" nvda2speechd &> /dev/null || ${XDG_DATA_HOME:-$HOME/.local/share}/audiogame-manager/nvda2speechd &
+            # switch to wine64 for 64 bit prefix.
+            [[ "${wine}" == "wine" ]] && export wine="wine64"
         fi
-        $wine start /d "${winePath}" "$wineExec" /realtime
+        ${wine:-wine} start /d "${winePath}" "$wineExec" /realtime
     fi
     exit 0
 }