diff --git a/omegaconf/grammar_parser.py b/omegaconf/grammar_parser.py
index 6a6b78f6d..181e702c9 100644
--- a/omegaconf/grammar_parser.py
+++ b/omegaconf/grammar_parser.py
@@ -22,10 +22,10 @@
 _config_key = f"({_id}|\\$)+"  # foo, $bar, $foo$bar$
 _node_path = f"(\\.)*({_config_key}(\\.{_config_key})*)?"  # foo, .foo.$bar
 _node_inter = f"\\${{\\s*{_node_path}\\s*}}"  # node interpolation ${foo.bar}
-_resolver_path = f"({_id}(\\.{_id})*)?"  # foo, ns.bar3, ns_1.ns_2.b0z
+_resolver_name = f"({_id}(\\.{_id})*)?"  # foo, ns.bar3, ns_1.ns_2.b0z
 _arg = "[a-zA-Z_0-9/\\-\\+.$%*@]+"  # string representing a resolver argument
 _args = f"{_arg}(\\s*,\\s*{_arg})*"  # list of resolver arguments
-_resolver_inter = f"\\${{\\s*{_resolver_path}\\s*:\\s*{_args}?\\s*}}"  # ${foo:bar}
+_resolver_inter = f"\\${{\\s*{_resolver_name}\\s*:\\s*{_args}?\\s*}}"  # ${foo:bar}
 _inter = f"({_node_inter}|{_resolver_inter})"  # any kind of interpolation
 _outer = "([^$]|\\$(?!{))+"  # any character except $ (unless not followed by {)
 SIMPLE_INTERPOLATION_PATTERN = re.compile(