diff --git a/Source/MatcherFactory.cs b/Source/MatcherFactory.cs
index db8463458..2ae048921 100644
--- a/Source/MatcherFactory.cs
+++ b/Source/MatcherFactory.cs
@@ -99,19 +99,19 @@ public static IMatcher CreateMatcher(Expression expression, bool isParams)
 				if (attr != null)
 				{
 					var matcher = attr.CreateMatcher();
-					matcher.Initialize(expression);
+					matcher.Initialize(originalExpression);
 					return matcher;
 				}
 				else if (staticMatcherMethodAttr != null)
 				{
 					var matcher = new MatcherAttributeMatcher();
-					matcher.Initialize(expression);
+					matcher.Initialize(originalExpression);
 					return matcher;
 				}
 				else
 				{
 					var matcher = new LazyEvalMatcher();
-					matcher.Initialize(expression);
+					matcher.Initialize(originalExpression);
 					return matcher;
 				}
 			}
diff --git a/UnitTests/Regressions/IssueReportsFixture.cs b/UnitTests/Regressions/IssueReportsFixture.cs
index f237ceb21..676a36860 100644
--- a/UnitTests/Regressions/IssueReportsFixture.cs
+++ b/UnitTests/Regressions/IssueReportsFixture.cs
@@ -1889,5 +1889,25 @@ public interface IServiceContract
 #endif
 
         #endregion
+
+        #region Matcher should work with Convert
+
+        public class MatcherConvertFixture
+        {
+            public interface IFoo
+            {
+                string M(long l);
+            }
+
+            [Fact]
+            public void MatcherDoesNotIgnoreConvert()
+            {
+                var mock = new Mock<IFoo>(MockBehavior.Strict);
+                mock.Setup(x => x.M(int.Parse("2"))).Returns("OK");
+                Assert.Equal("OK", mock.Object.M(2L));
+            }
+        }
+
+        #endregion
     }
 }