diff --git a/test_symbols.sh b/test_symbols.sh
index f3d7865..e56d37c 100755
--- a/test_symbols.sh
+++ b/test_symbols.sh
@@ -2,5 +2,5 @@
 
 set -euo pipefail
 
-diff -u "$2" <(nm "$1" | grep " T " | cut -f3 -d " " | sort)
+diff -u <(sort < "$2") <(nm "$1" | grep " T " | cut -f3 -d " " | sort)
 nm "$1" | grep " U " | (! grep -Pv 'abort|free|malloc|mem[a-z]*|__ashlti3')