diff --git a/plugins/sphinx/class/sphinx_make.py b/plugins/sphinx/class/sphinx_make.py
index 6c951efa8..22907adca 100644
--- a/plugins/sphinx/class/sphinx_make.py
+++ b/plugins/sphinx/class/sphinx_make.py
@@ -326,10 +326,11 @@ index {$DB_NAME}_{$TABLE_NAME}
 
 	def makeSphinxDbFieldRepalce(self, content, sph_field):
 		ver = self.ver.replace(".1",'')
+		ver = float(ver)
 		if ver >= 3.7:
 			content = content.replace("{$SPH_FIELD}", '')
 			content = content.replace("{$SPH_FIELD_INDEX}", '')
-		elif float(ver) >= 3.6:
+		elif ver >= 3.6:
 			content = content.replace("{$SPH_FIELD}", '')
 			content = content.replace("{$SPH_FIELD_INDEX}", sph_field)
 		else: