diff --git a/pkg/deppy/input/variable_source.go b/pkg/deppy/input/simple_variable.go
similarity index 77%
rename from pkg/deppy/input/variable_source.go
rename to pkg/deppy/input/simple_variable.go
index 41514c5..f9a6ca6 100644
--- a/pkg/deppy/input/variable_source.go
+++ b/pkg/deppy/input/simple_variable.go
@@ -1,16 +1,9 @@
 package input
 
 import (
-	"context"
-
 	"github.com/operator-framework/deppy/pkg/deppy"
 )
 
-// VariableSource generates solver constraints given an entity querier interface
-type VariableSource interface {
-	GetVariables(ctx context.Context) ([]deppy.Variable, error)
-}
-
 var _ deppy.Variable = &SimpleVariable{}
 
 type SimpleVariable struct {