diff --git a/src/db_utils/db_creation.py b/src/db_utils/db_creation.py
index 079008273fc48ebd3090af963a9a4bbf37237e7a..883deb7838b82adb4dccc2700356891731c4351e 100755
--- a/src/db_utils/db_creation.py
+++ b/src/db_utils/db_creation.py
@@ -147,7 +147,7 @@ def create_cin_gene_interaction_table(conn: sqlite3.Connection) -> None:
                 [gene2] INT NOT NULL,
                 [id_project] INT NOT NULL,
                 [level] VARCHAR(25) NOT NULL,
-                [distance] VARCHAR(30),
+                [distance] FLOAT,
                 PRIMARY KEY ([id]),
                 FOREIGN KEY ([gene1]) REFERENCES cin_gene([id]),
                 FOREIGN KEY ([gene2]) REFERENCES cin_gene([id]),