diff --git a/test/val/postincdec.c b/test/val/postincdec.c
new file mode 100644
index 000000000..19a6eb2a7
--- /dev/null
+++ b/test/val/postincdec.c
@@ -0,0 +1,23 @@
+/*
+  !!DESCRIPTION!! char-sized post-increment and -decrement
+  !!ORIGIN!!      cc65 regression tests
+  !!LICENCE!!     Public Domain
+  !!AUTHOR!!      Lauri Kasanen
+*/
+
+
+static unsigned char val, array[2];
+
+int main() {
+
+	val = 0;
+	array[0] = array[1] = 10;
+
+	array[val++] = 2;
+	array[val++] = 2;
+	--val;
+	array[val--] = 0;
+	array[val--] = 0;
+
+	return (array[0] == array[1] && array[0] == 0) ? 0 : 1;
+}