diff --git a/backend/internal/moduleindex/generator.go b/backend/internal/moduleindex/generator.go
index 05f083ac..8bdfa4d4 100644
--- a/backend/internal/moduleindex/generator.go
+++ b/backend/internal/moduleindex/generator.go
@@ -823,6 +823,7 @@ func (g generator) extractProviderDependencies(schema moduleschema.Schema, d *De
 			Name:              providerCallName,
 			FullName:          providerCall.FullName,
 			VersionConstraint: providerCall.VersionConstraint,
+			Alias:             "",
 		}
 		i++
 	}
diff --git a/backend/internal/moduleindex/module_version.go b/backend/internal/moduleindex/module_version.go
index 775e1f8c..4ba58c2c 100644
--- a/backend/internal/moduleindex/module_version.go
+++ b/backend/internal/moduleindex/module_version.go
@@ -74,6 +74,8 @@ type ModuleDependency struct {
 // ProviderDependency describes a provider dependency of a module.
 // swagger:model
 type ProviderDependency struct {
+	// required:true
+	Alias string `json:"alias"`
 	// required:true
 	Name string `json:"name"`
 	// required:true