diff --git a/libsrc/include/nginterface_v2.hpp b/libsrc/include/nginterface_v2.hpp
index d06c7de9..4c28670b 100644
--- a/libsrc/include/nginterface_v2.hpp
+++ b/libsrc/include/nginterface_v2.hpp
@@ -389,7 +389,7 @@ namespace netgen
     // also added from nginterface.h, still 1-based, need redesign
     void HPRefinement (int levels, double parameter = 0.125,
                        bool setorders = true,bool ref_level = false);
-    void SplitAlefeld ();
+    void SplitAlfeld ();
     
     size_t GetNP() const;
     int GetSurfaceElementSurfaceNumber (size_t ei) const;
diff --git a/libsrc/interface/nginterface_v2.cpp b/libsrc/interface/nginterface_v2.cpp
index c2f295bb..f7c92194 100644
--- a/libsrc/interface/nginterface_v2.cpp
+++ b/libsrc/interface/nginterface_v2.cpp
@@ -1229,11 +1229,11 @@ namespace netgen
     ::netgen::HPRefinement (*mesh, &ref, SPLIT_HP, levels, parameter, setorders, ref_level);
   }
 
-  void Ngx_Mesh::SplitAlefeld ()
+  void Ngx_Mesh::SplitAlfeld ()
   {
     NgLock meshlock (mesh->MajorMutex(), true);
     Refinement & ref = const_cast<Refinement&> (mesh->GetGeometry()->GetRefinement());
-    ::netgen::HPRefinement (*mesh, &ref, SPLIT_ALEFELD, 1, 0.5, true, true);
+    ::netgen::HPRefinement (*mesh, &ref, SPLIT_ALFELD, 1, 0.5, true, true);
   }
 
   
diff --git a/libsrc/meshing/hpref_trig.hpp b/libsrc/meshing/hpref_trig.hpp
index 890d79ff..52f3582e 100644
--- a/libsrc/meshing/hpref_trig.hpp
+++ b/libsrc/meshing/hpref_trig.hpp
@@ -787,34 +787,34 @@ HPRef_Struct reftrig_3singedges =
 
 
 // HP_TRIG_3SINGEDGES
-int reftrig_Alefeld_splitedges[][3] =
+int reftrig_Alfeld_splitedges[][3] =
 {
   { 0, 0, 0 }
 };
-int reftrig_Alefeld_splitfaces[][4] =
+int reftrig_Alfeld_splitfaces[][4] =
 {
   { 1, 2, 3, 4 },
   { 0, 0, 0, 0 }
 };
 
-HPREF_ELEMENT_TYPE reftrig_Alefeld_newelstypes[] =
+HPREF_ELEMENT_TYPE reftrig_Alfeld_newelstypes[] =
 {
   HP_TRIG, HP_TRIG, HP_TRIG,
   HP_NONE, 
 };
-int reftrig_Alefeld_newels[][8] =
+int reftrig_Alfeld_newels[][8] =
 {
   { 1, 2, 4 }, 
   { 2, 3, 4 }, 
   { 3, 1, 4 },
 };
-HPRef_Struct reftrig_Alefeld =
+HPRef_Struct reftrig_Alfeld =
 {
   HP_TRIG,
-  reftrig_Alefeld_splitedges, 
-  reftrig_Alefeld_splitfaces,
+  reftrig_Alfeld_splitedges, 
+  reftrig_Alfeld_splitfaces,
   0,
-  reftrig_Alefeld_newelstypes,
-  reftrig_Alefeld_newels
+  reftrig_Alfeld_newelstypes,
+  reftrig_Alfeld_newels
 };
 
diff --git a/libsrc/meshing/hprefinement.cpp b/libsrc/meshing/hprefinement.cpp
index 22db74d8..ecb6505b 100644
--- a/libsrc/meshing/hprefinement.cpp
+++ b/libsrc/meshing/hprefinement.cpp
@@ -174,8 +174,8 @@ namespace netgen
       case HP_TRIG_3SINGEDGES:
 	hps = &reftrig_3singedges; break;
  
-      case HP_TRIG_ALEFELD:
-        hps = &reftrig_Alefeld; break;
+      case HP_TRIG_ALFELD:
+        hps = &reftrig_Alfeld; break;
 
         
       case HP_QUAD:
@@ -1846,7 +1846,7 @@ bool CheckSingularities(Mesh & mesh, INDEX_2_HASHTABLE<int> & edges, INDEX_2_HAS
 			      cornerpoint, edgepoint, faces, face_edges, 
 			      surf_edges, facepoint, levels, act_ref); 
 
-    if (act_ref == 1 && split == SPLIT_ALEFELD)
+    if (act_ref == 1 && split == SPLIT_ALFELD)
       sing = true;   
     if(sing==0) return(sing); 
 
@@ -1900,7 +1900,7 @@ bool CheckSingularities(Mesh & mesh, INDEX_2_HASHTABLE<int> & edges, INDEX_2_HAS
                 hpel.type = ClassifyTrig(hpel, edges, edgepoint_dom, cornerpoint, edgepoint, 
                                          faces, face_edges, surf_edges, facepoint, dim, fd);    
               else
-                hpel.type = HP_TRIG_ALEFELD;
+                hpel.type = HP_TRIG_ALFELD;
 
 	      dd = 2;
 	      break; 
diff --git a/libsrc/meshing/hprefinement.hpp b/libsrc/meshing/hprefinement.hpp
index 3095a38b..5d1e498a 100644
--- a/libsrc/meshing/hprefinement.hpp
+++ b/libsrc/meshing/hprefinement.hpp
@@ -41,7 +41,7 @@ enum HPREF_ELEMENT_TYPE {
   HP_TRIG_SINGEDGES23,
   HP_TRIG_3SINGEDGES = 40,
 
-  HP_TRIG_ALEFELD,
+  HP_TRIG_ALFELD,
   
   HP_QUAD = 50,
   HP_QUAD_SINGCORNER,
@@ -313,7 +313,7 @@ public:
 };
 
 
-enum SplittingType { SPLIT_HP, SPLIT_ALEFELD };
+enum SplittingType { SPLIT_HP, SPLIT_ALFELD };
 
 DLL_HEADER extern void HPRefinement (Mesh & mesh, Refinement * ref, SplittingType split, int levels,
 			  double fac1=0.125, bool setorders=true, bool ref_level = false);