diff --git a/spaceapi_validator.go b/spaceapi_validator.go
index 237b05f..6955575 100644
--- a/spaceapi_validator.go
+++ b/spaceapi_validator.go
@@ -5,6 +5,7 @@ package spaceapivalidator
 import (
 	"encoding/json"
 	"errors"
+	"fmt"
 	"github.com/xeipuuv/gojsonschema"
 	"strings"
 )
@@ -12,7 +13,7 @@ import (
 //go:generate go run scripts/generate.go
 
 type spaceAPIVersion struct {
-	API string
+	API interface{}
 }
 
 // ResultError tells you whats wrong with specific attributes of your SpaceApi file
@@ -43,7 +44,7 @@ func Validate(document string) (ValidationResult, error) {
 		return myResult, err
 	}
 
-	schemaString, ok := SpaceAPISchemas[strings.Replace(suppliedVersion.API, "0.", "", 1)]
+	schemaString, ok := SpaceAPISchemas[strings.Replace(fmt.Sprintf("%v", suppliedVersion.API), "0.", "", 1)]
 	if !ok {
 		schemaString = SpaceAPISchemas["13"]
 	}
diff --git a/spaceapi_validator_test.go b/spaceapi_validator_test.go
index b644dcc..e3e0077 100644
--- a/spaceapi_validator_test.go
+++ b/spaceapi_validator_test.go
@@ -7,6 +7,7 @@ import (
 var wrongVersion = `{ "api": "0.5" }`
 var invalid13 = `{ "api": "0.13" }`
 var valid13 = `{ "api": "0.13", "open": true, "space": "example", "url": "https://example.com", "logo": "https://example.com/logo.png", "location": { "lon": 42, "lat": 23 }, "state": { "open": true }, "contact": {}, "issue_report_channels": [ "email" ] }`
+var wrongVersionNumeric = `{ "api": 0.13, "open": true, "space": "example", "url": "https://example.com", "logo": "https://example.com/logo.png", "location": { "lon": 42, "lat": 23 }, "state": { "open": true }, "contact": {}, "issue_report_channels": [ "email" ] }`
 
 func TestValidate(t *testing.T) {
 	invalidResult, _ := Validate(invalid13)
@@ -37,4 +38,11 @@ func TestValidate(t *testing.T) {
 	if invalidResult.Valid == true {
 		t.Error("Expected validation to be false, got", invalidResult.Valid)
 	}
+
+	invalidResult, err = Validate(wrongVersionNumeric)
+	if err != nil {
+		t.Error("validation error shouldn't show up on valid json")
+	} else if invalidResult.Valid == true {
+		t.Error("Expected validation to be false, got", invalidResult.Valid)
+	}
 }