--- a/ispell.SlackBuild	2021-02-12 22:52:14.917173121 +0200
+++ b/ispell.SlackBuild	2021-02-12 22:52:34.729137614 +0200
@@ -49,6 +49,10 @@
 
 if [ "$ARCH" = "x86_64" ]; then
   LIBDIRSUFFIX="64"
+elif [ "$ARCH" = "aarch64" ]; then
+  LIBDIRSUFFIX="64"
+elif [ "$ARCH" = "riscv64" ]; then
+  LIBDIRSUFFIX="64"
 else
   LIBDIRSUFFIX=""
 fi