diff --git a/Test/CMakeLists.txt b/Test/CMakeLists.txt
index 8e253ae..caafefe 100644
--- a/Test/CMakeLists.txt
+++ b/Test/CMakeLists.txt
@@ -26,6 +26,7 @@ set(TESTS
 	WeakReferences_arc.m
 	objc_msgSend.m
 	msgInterpose.m
+	MethodArguments.m
 )
 
 # Function for adding a test.  This takes the name of the test and the list of
diff --git a/encoding2.c b/encoding2.c
index f4c7b25..1bcdb89 100644
--- a/encoding2.c
+++ b/encoding2.c
@@ -393,7 +393,7 @@ void method_getArgumentType(Method method,
                             size_t dst_len)
 {
 	if (NULL == method) { return; }
-	const char *types = findParameterStart(method->types, index);
+	const char *types = findParameterStart(method->types, index + 1);
 	if (NULL == types)
 	{
 		strncpy(dst, "", dst_len);