diff --git a/bluepymm/templates/cell_template_neurodamus_sbo.jinja2 b/bluepymm/templates/cell_template_neurodamus_sbo.jinja2
index fceb102..8a793ad 100644
--- a/bluepymm/templates/cell_template_neurodamus_sbo.jinja2
+++ b/bluepymm/templates/cell_template_neurodamus_sbo.jinja2
@@ -144,6 +144,12 @@ proc load_morphology(/* morphology_dir, morphology_name */) {localobj morph, imp
   sscanf(morph_path, "%s", extension.s)
 
   sf.right(extension.s, sf.len(extension.s)-3)
+  if(strcmp(extension.s, "ASC") == 0 ){
+    extension.s = "asc"
+  }
+  if(strcmp(extension.s, "SWC") == 0 ){
+    extension.s = "swc"
+  }
   
   if( strcmp(extension.s, "asc") == 0 ) {
      morph = new Import3d_Neurolucida3()