diff --git a/lint.go b/lint.go
index b63914b..bc809a3 100644
--- a/lint.go
+++ b/lint.go
@@ -323,6 +323,12 @@
 					}
 				}
 			}
+		case *ast.InterfaceType:
+			for _, f := range v.Methods.List {
+				for _, id := range f.Names {
+					check(id, "interface method")
+				}
+			}
 		case *ast.StructType:
 			for _, f := range v.Fields.List {
 				for _, id := range f.Names {
diff --git a/testdata/names.go b/testdata/names.go
index 25f5901..004cae9 100644
--- a/testdata/names.go
+++ b/testdata/names.go
@@ -34,3 +34,7 @@
 func g() (no_way int)                   {} // MATCH /underscore.*func result.*no_way/
 func (t *t_wow) f(more_under string)    {} // MATCH /underscore.*method parameter.*more_under/
 func (t *t_wow) g() (still_more string) {} // MATCH /underscore.*method result.*still_more/
+
+type i interface {
+	CheckHtmlPath() string // MATCH /interface method.*CheckHtmlPath.*CheckHTMLPath/
+}