diff --git a/provisioner/terraform/resources.go b/provisioner/terraform/resources.go
index 044ad9837445a..639ed8876fba3 100644
--- a/provisioner/terraform/resources.go
+++ b/provisioner/terraform/resources.go
@@ -127,6 +127,10 @@ func ConvertResources(module *tfjson.StateModule, rawGraph string) ([]*proto.Res
 			}
 		}
 
+		if agentResource == nil {
+			continue
+		}
+
 		agents, exists := resourceAgents[agentResource.Label]
 		if !exists {
 			agents = make([]*proto.Agent, 0)