diff --git a/src/regression/regex-negated-range.c b/src/regression/regex-negated-range.c
new file mode 100644
index 0000000..0b53e0b
--- /dev/null
+++ b/src/regression/regex-negated-range.c
@@ -0,0 +1,25 @@
+// negated overlapping ranges in a regex bracket
+// were not handled correctly by tre
+#include <regex.h>
+#include "test.h"
+
+int main(void)
+{
+	char buf[200];
+	regex_t r;
+	int n;
+
+	n = regcomp(&r, "[^aa-z]", 0);
+	if (n) {
+		regerror(n, &r, buf, sizeof buf);
+		t_error("regcomp returned %d (%s)\n", n, buf);
+	}
+
+	n = regexec(&r, "k", 0, 0, REG_NOSUB);
+	if (n != REG_NOMATCH)
+		t_error("regexec returned %d, [^aa-z] must not match on \"k\"\n", n);
+
+	regfree(&r);
+
+	return t_status;
+}