diff --git a/app/forms.py b/app/forms.py
index aafd9baf3412973d7942c2e17c1a1aecd54a87d2..d6f9d1c94dcefee16837c8a7fa9a98ac2b641c22 100644
--- a/app/forms.py
+++ b/app/forms.py
@@ -28,6 +28,8 @@ class UploadMateriForm(forms.ModelForm):
             if (field_name == "categories"):
                 continue
             field.widget.attrs["class"] = "form-control"
+            field.widget.attrs["placeholder"] = field.initial
+            field.initial = ""
         self.fields['categories'].widget.attrs.update({'class' : "native"})