diff --git a/Tests/BIntTests.swift b/Tests/BIntTests.swift
index 43b924c..67d7e22 100644
--- a/Tests/BIntTests.swift
+++ b/Tests/BIntTests.swift
@@ -113,4 +113,17 @@ class BIntTests: XCTestCase {
 		}
 	}
     
+    /** An issue was reported where a hex string was not being converted to a decimal. This test case checks that. */
+    func testIssue58() throws {
+        // 190000000000000000000
+        let x = try XCTUnwrap(BInt("0x00000000000000000000000000000000000000000000000a4cc799563c380000"))
+        let y = try XCTUnwrap(BInt("0x00000000000000000000000000000000000000000000000a4cc799563c380000", radix:16))
+        XCTAssertEqual(x, y)
+        for radix in 2...16 {
+            XCTAssertEqual(x.asString(radix: radix), y.asString(radix: radix))
+        }
+        XCTAssertNotEqual(x, 0)
+        XCTAssertGreaterThan(x, BInt(Int32.max))
+        XCTAssertEqual(x, BInt("190000000000000000000"))
+    }
 }