diff --git a/src/db/migration/V20161116_1440__mantis8120.sql b/src/db/migration/V20161116_1440__mantis8120.sql
index c833b89f3..523c367f8 100644
--- a/src/db/migration/V20161116_1440__mantis8120.sql
+++ b/src/db/migration/V20161116_1440__mantis8120.sql
@@ -1,4 +1,7 @@
-ALTER TABLE FISCAL_IMPRESSORA ADD (NUMEROIDENTIFICACAO NUMBER(3));
-ALTER TABLE EMPRESA_IMPOSTO ADD (CODESTABELECIMENTO NUMBER(4));
-ALTER TABLE EMPRESA_IMPOSTO ADD (TRIBUTACAOIMPORTACAO NUMBER(5,2));
-ALTER TABLE ESTADO ADD (CODESTABELECIMENTO NUMBER(4));    
+declare
+    column_exists exception;
+    pragma exception_init (column_exists , -01430);
+begin
+    execute immediate 'ALTER TABLE FISCAL_IMPRESSORA ADD (NUMEROIDENTIFICACAO NUMBER(3))';
+    exception when column_exists then null;
+end;
diff --git a/src/db/migration/V20161228_1030__mantis8120.sql b/src/db/migration/V20161228_1030__mantis8120.sql
new file mode 100644
index 000000000..c1d8d1e57
--- /dev/null
+++ b/src/db/migration/V20161228_1030__mantis8120.sql
@@ -0,0 +1,7 @@
+declare
+    column_exists exception;
+    pragma exception_init (column_exists , -01430);
+begin
+    execute immediate 'ALTER TABLE EMPRESA_IMPOSTO ADD (CODESTABELECIMENTO NUMBER(4))';
+    exception when column_exists then null;
+end;
diff --git a/src/db/migration/V20161228_1031__mantis8120.sql b/src/db/migration/V20161228_1031__mantis8120.sql
new file mode 100644
index 000000000..e7f9c88b4
--- /dev/null
+++ b/src/db/migration/V20161228_1031__mantis8120.sql
@@ -0,0 +1,7 @@
+declare
+    column_exists exception;
+    pragma exception_init (column_exists , -01430);
+begin
+    execute immediate 'ALTER TABLE EMPRESA_IMPOSTO ADD (TRIBUTACAOIMPORTACAO NUMBER(5,2))';
+    exception when column_exists then null;
+end;
diff --git a/src/db/migration/V20161228_1032__mantis8120.sql b/src/db/migration/V20161228_1032__mantis8120.sql
new file mode 100644
index 000000000..1a8484a98
--- /dev/null
+++ b/src/db/migration/V20161228_1032__mantis8120.sql
@@ -0,0 +1,7 @@
+declare
+    column_exists exception;
+    pragma exception_init (column_exists , -01430);
+begin
+    execute immediate 'ALTER TABLE ESTADO ADD (CODESTABELECIMENTO NUMBER(4))';
+    exception when column_exists then null;
+end;