diff --git a/houdini/converters.py b/houdini/converters.py
index e780401..d57d946 100644
--- a/houdini/converters.py
+++ b/houdini/converters.py
@@ -472,10 +472,11 @@ def get_converter(component):
 
 
 async def do_conversion(converter, ctx):
-    if not isinstance(converter, IConverter) and issubclass(converter, IConverter):
-        converter = converter()
-    if isinstance(converter, IConverter):
-        if asyncio.iscoroutinefunction(converter.convert):
-            return await converter.convert(ctx)
-        return converter.convert(ctx)
+    if inspect.isclass(converter):
+        if not isinstance(converter, IConverter) and issubclass(converter, IConverter):
+            converter = converter()
+        if isinstance(converter, IConverter):
+            if asyncio.iscoroutinefunction(converter.convert):
+                return await converter.convert(ctx)
+            return converter.convert(ctx)
     return converter(ctx.argument)