diff --git a/tests/test-rem b/tests/test-rem
index 9b9953a8..814bf73e 100644
--- a/tests/test-rem
+++ b/tests/test-rem
@@ -795,6 +795,24 @@ done
 
 ../src/remind --flush -q ../tests/safety.rem 2025-08-13 >> ../tests/test.out 2>&1
 
+# Test --max-expr-complexity
+../src/remind --flush -q --max-expr-complexity=1000000 - 2025-01-01 <<'EOF' >> ../tests/test.out 2>&1
+BANNER %
+SET $AddBlankLines 0
+FSET fib(n) iif(n < 3, 1, fib(n-1) + fib(n-2))
+
+REM MSG fib(10) = [fib(10)]
+REM MSG fib(15) = [fib(15)]
+REM MSG fib(20) = [fib(20)]
+REM MSG fib(21) = [fib(21)]
+REM MSG fib(22) = [fib(22)]
+REM MSG fib(23) = [fib(23)]
+REM MSG fib(24) = [fib(24)]
+REM MSG fib(25) = [fib(25)]
+REM MSG fib(30) = [fib(30)]
+
+EOF
+
 cmp -s ../tests/test.out ../tests/test.cmp
 if [ "$?" = "0" ]; then
    echo "Remind:  Acceptance test PASSED"
diff --git a/tests/test.cmp b/tests/test.cmp
index b472d57b..e214fa7a 100644
--- a/tests/test.cmp
+++ b/tests/test.cmp
@@ -39824,3 +39824,16 @@ nooooo....
     ../tests/safety.rem(37): [#0] In function `subst_b'
 today
 nooooo....
+fib(10) = 55
+fib(15) = 610
+fib(20) = 6765
+fib(21) = 10946
+fib(22) = 17711
+fib(23) = 28657
+fib(24) = 46368
+-stdin-(12): `-': Maximum expression complexity exceeded
+    -stdin-(3): [#0] In function `fib'
+    [remaining call frames omitted]
+-stdin-(13): `-': Maximum expression complexity exceeded
+    -stdin-(3): [#0] In function `fib'
+    [remaining call frames omitted]