diff --git a/app/forms/research.py b/app/forms/research.py
index 1104006a..418a4626 100644
--- a/app/forms/research.py
+++ b/app/forms/research.py
@@ -1,5 +1,6 @@
 from app.forms.base import PrepopulatedForm
 from flask_babel import gettext
+from flask_babel import lazy_gettext
 from wtforms import RadioField
 from wtforms import StringField
 from wtforms.validators import Email
@@ -20,7 +21,7 @@ def __init__(self, *args, **kwargs):
 
 
 class ResearchContactDetailsForm(PrepopulatedForm):
-    contact_name = StringField(label="Full name", validators=[InputRequired(message="Name of contact is required")])
-    contact_email = StringField(
-        label="Email", validators=[InputRequired(message="Contact email address is required"), Email()]
-    )
+    contact_email_input_message = lazy_gettext("Contact email address is required")
+    contact_name_input_message = lazy_gettext("Name of contact is required")
+    contact_name = StringField(label="Full name", validators=[InputRequired(message=contact_name_input_message)])
+    contact_email = StringField(label="Email", validators=[InputRequired(message=contact_email_input_message), Email()])
diff --git a/app/translations/cy/LC_MESSAGES/messages.mo b/app/translations/cy/LC_MESSAGES/messages.mo
index 7af7084a..e0ba3e0c 100644
Binary files a/app/translations/cy/LC_MESSAGES/messages.mo and b/app/translations/cy/LC_MESSAGES/messages.mo differ
diff --git a/app/translations/cy/LC_MESSAGES/messages.po b/app/translations/cy/LC_MESSAGES/messages.po
index c05c85d5..84dbb91c 100644
--- a/app/translations/cy/LC_MESSAGES/messages.po
+++ b/app/translations/cy/LC_MESSAGES/messages.po
@@ -131,6 +131,14 @@ msgstr "Rwy'n cytuno i chi gysylltu â mi at ddibenion ymchwil"
 msgid "I do not want to be contacted for research purposes"
 msgstr "Nid wyf eisiau i chi gysylltu â mi at ddibenion ymchwil"
 
+#: app/forms/research.py:24
+msgid "Name of contact is required"
+msgstr "Mae angen enw’r cyswllt"
+
+#: app/forms/research.py:23
+msgid "Contact email address is required"
+msgstr "Mae angen cyfeiriad e-bost y cyswllt"
+
 #: app/models/language.py:5
 msgid "English"
 msgstr "Saesneg"