diff --git a/src/Makefile b/src/Makefile
index 4f141d0..2b83f75 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -33,8 +33,8 @@ upload:
 	@python ./scripts/upload.py
 	@echo "Upload completed!"
 
-convert_mysql:
-	@echo "Converting dump to mysql..."
+convert_postgres:
+	@echo "Converting dump to postgres..."
 	@bash ./scripts/sqlite3-to-mysql.sh ./scripts/dump/data/dump_sqlite3.sql > ./scripts/dump/data/01_data.sql
 	@echo "Convertion completed!"
 
diff --git a/src/scrapper/spiders/slot_spider.py b/src/scrapper/spiders/slot_spider.py
index 64cb4de..f18bcdb 100644
--- a/src/scrapper/spiders/slot_spider.py
+++ b/src/scrapper/spiders/slot_spider.py
@@ -225,6 +225,11 @@ def get_professor_info(self, teacher):
             [professor_sigarra_id, professor_name,
                 *_] = teacher["name"].split("-", 1)
 
-            return (professor_sigarra_id.strip(), professor_name.strip())
+            try:
+                professor_sigarra_id = int(professor_sigarra_id.strip())
+            except:
+                professor_sigarra_id = teacher["id"]
+
+            return (professor_sigarra_id, professor_name.strip())
 
         return (teacher["sigarra_id"], teacher["name"])