diff --git a/integration_tests/models/schema.yml b/integration_tests/models/schema.yml
index 07e14ef..4a4f7d5 100644
--- a/integration_tests/models/schema.yml
+++ b/integration_tests/models/schema.yml
@@ -25,6 +25,9 @@ models:
           column_name: p_partkey
 
   - name: dim_customers
+    # Test support for alias
+    config:
+      alias: dim_customer
     description: "Customer dimension"
     columns:
       - name: c_custkey
diff --git a/integration_tests/models/sources.yml b/integration_tests/models/sources.yml
index 84ac25a..cf24395 100644
--- a/integration_tests/models/sources.yml
+++ b/integration_tests/models/sources.yml
@@ -63,7 +63,7 @@ sources:
             tests:
               - not_null
               - relationships:
-                  to: source('tpc_h', 'CUSTOMER')
+                  to: source('tpc_h', 'customer')
                   field: c_custkey
 
       - name: customer
diff --git a/macros/create_constraints.sql b/macros/create_constraints.sql
index 3f604bd..419e395 100644
--- a/macros/create_constraints.sql
+++ b/macros/create_constraints.sql
@@ -171,6 +171,7 @@
                 | selectattr("resource_type", "equalto", "source")
                 | selectattr("unique_id", "in", test_model.depends_on.nodes) -%}
 
+                    {%- do node.update({'alias': node.alias or node.name }) -%}
                     {#- Append to our list of models for this test -#}
                     {%- do table_models.append(node) -%}
                     {#- If we are using a sources, we will need to verify permissions -#}
@@ -202,7 +203,7 @@
             {%- set table_relation = adapter.get_relation(
                 database=table_models[0].database,
                 schema=table_models[0].schema,
-                identifier=table_models[0].name) -%}
+                identifier=table_models[0].alias ) -%}
             {%- if dbt_constraints.table_columns_all_exist(table_relation, column_names) -%}
                 {%- if test_model.test_metadata.name == "primary_key" -%}
                     {%- do dbt_constraints.create_primary_key(table_relation, column_names, ns.verify_permissions, quote_columns) -%}
@@ -242,12 +243,12 @@
                 {%- set fk_table_relation = adapter.get_relation(
                     database=fk_model.database,
                     schema=fk_model.schema,
-                    identifier=fk_model.name) -%}
+                    identifier=fk_model.alias) -%}
 
                 {%- set pk_table_relation = adapter.get_relation(
                     database=pk_model.database,
                     schema=pk_model.schema,
-                    identifier=pk_model.name) -%}
+                    identifier=pk_model.alias) -%}
 
                 {# Attempt to identify parameters we can use for the column names #}
                 {%- set pk_column_names = [] -%}