diff --git a/graphene/types/field.py b/graphene/types/field.py
index 06ba8487..ea3143d5 100644
--- a/graphene/types/field.py
+++ b/graphene/types/field.py
@@ -9,6 +9,7 @@ from .structures import NonNull
 from .unmountedtype import UnmountedType
 from .utils import get_type
 from ..utils.deprecated import warn_deprecation
+from ..utils.trim_docstring import trim_docstring
 
 base_type = type
 
@@ -109,7 +110,7 @@ class Field(MountedType):
             resolver = partial(source_resolver, source)
         self.resolver = resolver
         self.deprecation_reason = deprecation_reason
-        self.description = description
+        self.description = trim_docstring(description)
         self.default_value = default_value
 
     @property
diff --git a/graphene/types/unmountedtype.py b/graphene/types/unmountedtype.py
index 83a6afef..dd6525df 100644
--- a/graphene/types/unmountedtype.py
+++ b/graphene/types/unmountedtype.py
@@ -1,5 +1,5 @@
 from ..utils.orderedtype import OrderedType
-
+from ..utils.trim_docstring import trim_docstring
 
 class UnmountedType(OrderedType):
     """
@@ -43,7 +43,9 @@ class UnmountedType(OrderedType):
         super(UnmountedType, self).__init__()
         self.args = args
         self.kwargs = kwargs
-
+        if 'description' in self.kwargs:
+            self.kwargs['description'] = trim_docstring(self.kwargs['description'])
+            
     def get_type(self):
         """
         This function is called when the UnmountedType instance