diff --git a/tools/niminst/buildsh.nimf b/tools/niminst/buildsh.nimf
index 5ec5d5c2c5..e132217818 100644
--- a/tools/niminst/buildsh.nimf
+++ b/tools/niminst/buildsh.nimf
@@ -159,9 +159,10 @@ case $ucpu in
       COMP_FLAGS="$COMP_FLAGS -m64"
       LINK_FLAGS="$LINK_FLAGS -m64"
       mycpu=`uname -p`
-      if [ "$(mycpu)" = "powerpc64le"] ; then
-	mycpu="powerpc64el"
-      fi
+      case $mycpu in
+        powerpc64le)
+        mycpu="powerpc64el"
+      esac
     else
       mycpu="powerpc"
     fi