diff --git a/lib/sinon-chai.js b/lib/sinon-chai.js
index 34ff97f..32d4e4e 100644
--- a/lib/sinon-chai.js
+++ b/lib/sinon-chai.js
@@ -139,9 +139,9 @@
     sinonMethod("calledImmediatelyBefore", "been called immediately before %1");
     sinonMethod("calledImmediatelyAfter", "been called immediately after %1");
     sinonMethod("calledOn", "been called with %1 as this", ", but it was called with %t instead");
-    sinonMethod("calledWith", "been called with arguments %*", "%C");
-    sinonMethod("calledWithExactly", "been called with exact arguments %*", "%C");
-    sinonMethod("calledWithMatch", "been called with arguments matching %*", "%C");
+    sinonMethod("calledWith", "been called with arguments %*", "%D");
+    sinonMethod("calledWithExactly", "been called with exact arguments %*", "%D");
+    sinonMethod("calledWithMatch", "been called with arguments matching %*", "%D");
     sinonMethod("returned", "returned %1");
     exceptionalSinonMethod("thrown", "threw", "thrown %1");
 }));
diff --git a/test/messages.js b/test/messages.js
index 3ab5d02..b3c9be4 100644
--- a/test/messages.js
+++ b/test/messages.js
@@ -234,23 +234,23 @@ describe("Messages", function () {
 
             expect(function () {
                 spy.should.have.been.calledWith("a", "b", "c");
-            }).to.throw("expected spy to have been called with arguments a, b, c\n    spy(1, 2, 3)");
+            }).to.throw("expected spy to have been called with arguments a, b, c");
             expect(function () {
                 spy.should.have.been.calledWithExactly("a", "b", "c");
-            }).to.throw("expected spy to have been called with exact arguments a, b, c\n    spy(1, 2, 3)");
+            }).to.throw("expected spy to have been called with exact arguments a, b, c");
             expect(function () {
                 spy.should.have.been.calledWithMatch(sinon.match("foo"));
-            }).to.throw("expected spy to have been called with arguments matching match(\"foo\")\n    spy(1, 2, 3)");
+            }).to.throw("expected spy to have been called with arguments matching match(\"foo\")");
 
             expect(function () {
                 spy.getCall(0).should.have.been.calledWith("a", "b", "c");
-            }).to.throw("expected spy to have been called with arguments a, b, c\n    spy(1, 2, 3)");
+            }).to.throw("expected spy to have been called with arguments a, b, c");
             expect(function () {
                 spy.getCall(0).should.have.been.calledWithExactly("a", "b", "c");
-            }).to.throw("expected spy to have been called with exact arguments a, b, c\n    spy(1, 2, 3)");
+            }).to.throw("expected spy to have been called with exact arguments a, b, c");
             expect(function () {
                 spy.getCall(0).should.have.been.calledWithMatch(sinon.match("foo"));
-            }).to.throw("expected spy to have been called with arguments matching match(\"foo\")\n    spy(1, 2, 3)");
+            }).to.throw("expected spy to have been called with arguments matching match(\"foo\")");
         });
 
         it("should be correct for the negated cases", function () {