diff --git a/netbox/extras/lookups.py b/netbox/extras/lookups.py
index 7197efcfc..3a7442cfd 100644
--- a/netbox/extras/lookups.py
+++ b/netbox/extras/lookups.py
@@ -6,12 +6,14 @@ class Empty(Lookup):
     Filter on whether a string is empty.
     """
     lookup_name = 'empty'
+    prepare_rhs = False
 
-    def as_sql(self, qn, connection):
-        lhs, lhs_params = self.process_lhs(qn, connection)
-        rhs, rhs_params = self.process_rhs(qn, connection)
-        params = lhs_params + rhs_params
-        return 'CAST(LENGTH(%s) AS BOOLEAN) != %s' % (lhs, rhs), params
+    def as_sql(self, compiler, connection):
+        sql, params = compiler.compile(self.lhs)
+        if self.rhs:
+            return f"CAST(LENGTH({sql}) AS BOOLEAN) IS NOT TRUE", params
+        else:
+            return f"CAST(LENGTH({sql}) AS BOOLEAN) IS TRUE", params
 
 
 CharField.register_lookup(Empty)