diff --git a/dbt/include/snowflake/macros/adapters.sql b/dbt/include/snowflake/macros/adapters.sql
index 157738187..e95d474bd 100644
--- a/dbt/include/snowflake/macros/adapters.sql
+++ b/dbt/include/snowflake/macros/adapters.sql
@@ -248,7 +248,7 @@
     {% set sql -%}
        alter {{ relation_type }} {{ relation }} add column
           {% for column in add_columns %}
-            {{ column.name }} {{ column.data_type }}{{ ',' if not loop.last }}
+            {{ adapter.quote(column.name) }} {{ column.data_type }}{{ ',' if not loop.last }}
           {% endfor %}
     {%- endset -%}
 
@@ -261,7 +261,7 @@
     {% set sql -%}
         alter {{ relation_type }} {{ relation }} drop column
             {% for column in remove_columns %}
-                {{ column.name }}{{ ',' if not loop.last }}
+                {{ adapter.quote(column.name) }}{{ ',' if not loop.last }}
             {% endfor %}
     {%- endset -%}