diff --git a/epyt/epanet.py b/epyt/epanet.py
index a31f3f7..a79cf0c 100644
--- a/epyt/epanet.py
+++ b/epyt/epanet.py
@@ -3504,7 +3504,7 @@ def getLinkPumpType(self):
         v = self.getLinkPumpTypeCode()
         pType = []
         for i in v:
-            pType.append(self.TYPEPUMP[i])
+            pType.append(self.TYPEPUMP[i-1])
         return pType
 
     def getLinkPumpTypeCode(self):