diff --git a/migrations/00004_AddStrain_up.sql b/migrations/00004_AddStrain_up.sql
index 42cd34b..96037bc 100644
--- a/migrations/00004_AddStrain_up.sql
+++ b/migrations/00004_AddStrain_up.sql
@@ -5,7 +5,7 @@ CREATE TABLE strains (
     id BIGSERIAL NOT NULL,
     species_id BIGINT NOT NULL,
     strain_name CHARACTER VARYING(100) NOT NULL,
-    strain_type CHARACTER VARYING(100) NOT NULL,
+    type_strain BOOLEAN NOT NULL,
     etymology CHARACTER VARYING(500) NULL,
     accession_banks CHARACTER VARYING(100) NULL,
     genbank_embl_ddb CHARACTER VARYING(100) NULL,
diff --git a/strains.go b/strains.go
index cf3846b..f060168 100644
--- a/strains.go
+++ b/strains.go
@@ -23,7 +23,7 @@ type StrainBase struct {
 	Id             int64      `json:"id,omitempty"`
 	SpeciesId      int64      `db:"species_id" json:"-"`
 	StrainName     string     `db:"strain_name" json:"strainName"`
-	StrainType     string     `db:"strain_type" json:"strainType"`
+	TypeStrain     bool       `db:"type_strain" json:"typeStrain"`
 	Etymology      NullString `db:"etymology" json:"etymology"`
 	AccessionBanks string     `db:"accession_banks" json:"accessionBanks"`
 	GenbankEmblDdb NullString `db:"genbank_embl_ddb" json:"genbankEmblDdb"`