diff --git a/org/qmckl_sherman_morrison_woodbury.org b/org/qmckl_sherman_morrison_woodbury.org
index 0c4b7a9..30117b9 100644
--- a/org/qmckl_sherman_morrison_woodbury.org
+++ b/org/qmckl_sherman_morrison_woodbury.org
@@ -364,7 +364,7 @@ qmckl_exit_code qmckl_sherman_morrison_naive(const qmckl_context context,
                           NULL);
   }
 
-  #ifdef HAVE_HPC
+  // #ifdef HAVE_HPC
   if (LDS == (1+(Dim-1)/SIMD_LENGTH)*SIMD_LENGTH) { // Most cases
     switch (Dim) {
       <<naive_switch-case_generator()>>
@@ -382,16 +382,16 @@ qmckl_exit_code qmckl_sherman_morrison_naive(const qmckl_context context,
     	                                determinant);
 
   }
-  #else
-  return qmckl_sherman_morrison_naive_doc(context,
-                                      Dim,
-    	                                N_updates,
-    	                                Updates,
-    	                                Updates_index,
-    	                                breakdown,
-    	                                Slater_inv,
-    	                                determinant);
-  #endif
+  // #else
+  // return qmckl_sherman_morrison_naive_doc(context,
+  //                                     Dim,
+  //   	                                 N_updates,
+  //                                     Updates,
+  //   	                                 Updates_index,
+  //   	                                 breakdown,
+  //   	                                 Slater_inv,
+  //   	                                 determinant);
+  // #endif
   
   return QMCKL_FAILURE;
 }