diff --git a/internal/addrs/module_call.go b/internal/addrs/module_call.go
index 4e8ce34f2..709b1e302 100644
--- a/internal/addrs/module_call.go
+++ b/internal/addrs/module_call.go
@@ -37,6 +37,10 @@ func (c ModuleCall) Absolute(moduleAddr ModuleInstance) AbsModuleCall {
 	}
 }
 
+func (c ModuleCall) Equal(other ModuleCall) bool {
+	return c.Name == other.Name
+}
+
 // AbsModuleCall is the address of a "module" block relative to the root
 // of the configuration.
 //
@@ -70,6 +74,10 @@ func (c AbsModuleCall) Instance(key InstanceKey) ModuleInstance {
 	return ret
 }
 
+func (c AbsModuleCall) Equal(other AbsModuleCall) bool {
+	return c.Module.Equal(other.Module) && c.Call.Equal(other.Call)
+}
+
 type absModuleCallInstanceKey string
 
 func (c AbsModuleCall) UniqueKey() UniqueKey {