diff --git a/swh/graphql/resolvers/base_node.py b/swh/graphql/resolvers/base_node.py
--- a/swh/graphql/resolvers/base_node.py
+++ b/swh/graphql/resolvers/base_node.py
@@ -77,5 +77,5 @@
 
 class BaseSWHNode(BaseNode):
     @property
-    def SWHID(self):
+    def swhid(self):
         return self._node.swhid()
diff --git a/swh/graphql/resolvers/content.py b/swh/graphql/resolvers/content.py
--- a/swh/graphql/resolvers/content.py
+++ b/swh/graphql/resolvers/content.py
@@ -34,7 +34,7 @@
         When a content is requested directly
         with its SWHID
         """
-        return self._get_content_by_id(self.kwargs.get("SWHID").object_id)
+        return self._get_content_by_id(self.kwargs.get("swhid").object_id)
 
 
 class TargetContentNode(BaseContentNode):
diff --git a/swh/graphql/resolvers/directory.py b/swh/graphql/resolvers/directory.py
--- a/swh/graphql/resolvers/directory.py
+++ b/swh/graphql/resolvers/directory.py
@@ -25,7 +25,7 @@
         """
         When a directory is requested directly with its SWHID
         """
-        directory_id = self.kwargs.get("SWHID").object_id
+        directory_id = self.kwargs.get("swhid").object_id
         # path = ""
         if archive.Archive().is_directory_available([directory_id]):
             return self._get_directory_by_id(directory_id)
@@ -37,7 +37,7 @@
         """
         When a directory is requested from a revision
         self.obj is revision here
-        self.obj.directorySWHID is the required dir SWHID
+        self.obj.directorySWHID is the required directory SWHID
         (set from resolvers.revision.py:BaseRevisionNode)
         """
         directory_id = self.obj.directorySWHID.object_id
diff --git a/swh/graphql/resolvers/directory_entry.py b/swh/graphql/resolvers/directory_entry.py
--- a/swh/graphql/resolvers/directory_entry.py
+++ b/swh/graphql/resolvers/directory_entry.py
@@ -24,7 +24,7 @@
     def _get_paged_result(self):
         """
         When entries requested from a directory
-        self.obj.SWHID is the directory SWHID here
+        self.obj.swhid is the directory SWHID here
 
         This is not paginated from swh-storgae
         using dummy pagination
@@ -34,6 +34,6 @@
         # To remove localpagination, just drop the paginated call
         # STORAGE-TODO
         entries = (
-            archive.Archive().get_directory_entries(self.obj.SWHID.object_id).results
+            archive.Archive().get_directory_entries(self.obj.swhid.object_id).results
         )
         return utils.paginated(entries, self._get_first_arg(), self._get_after_arg())
diff --git a/swh/graphql/resolvers/release.py b/swh/graphql/resolvers/release.py
--- a/swh/graphql/resolvers/release.py
+++ b/swh/graphql/resolvers/release.py
@@ -35,7 +35,7 @@
     """
 
     def _get_node_data(self):
-        return self._get_release_by_id(self.kwargs.get("SWHID").object_id)
+        return self._get_release_by_id(self.kwargs.get("swhid").object_id)
 
 
 class TargetReleaseNode(BaseReleaseNode):
diff --git a/swh/graphql/resolvers/revision.py b/swh/graphql/resolvers/revision.py
--- a/swh/graphql/resolvers/revision.py
+++ b/swh/graphql/resolvers/revision.py
@@ -48,7 +48,7 @@
     """
 
     def _get_node_data(self):
-        return self._get_revision_by_id(self.kwargs.get("SWHID").object_id)
+        return self._get_revision_by_id(self.kwargs.get("swhid").object_id)
 
 
 class TargetRevisionNode(BaseRevisionNode):
@@ -95,7 +95,7 @@
 
     def _get_paged_result(self):
         # STORAGE-TODO (date in revisionlog is a dict)
-        log = archive.Archive().get_revision_log([self.obj.SWHID.object_id])
+        log = archive.Archive().get_revision_log([self.obj.swhid.object_id])
         # FIXME, using dummy(local) pagination, move pagination to backend
         # To remove localpagination, just drop the paginated call
         # STORAGE-TODO (pagination)
diff --git a/swh/graphql/resolvers/snapshot.py b/swh/graphql/resolvers/snapshot.py
--- a/swh/graphql/resolvers/snapshot.py
+++ b/swh/graphql/resolvers/snapshot.py
@@ -26,7 +26,7 @@
 
     def _get_node_data(self):
         """ """
-        snapshot_id = self.kwargs.get("SWHID").object_id
+        snapshot_id = self.kwargs.get("swhid").object_id
         if archive.Archive().is_snapshot_available([snapshot_id]):
             return self._get_snapshot_by_id(snapshot_id)
         return None
diff --git a/swh/graphql/resolvers/snapshot_branch.py b/swh/graphql/resolvers/snapshot_branch.py
--- a/swh/graphql/resolvers/snapshot_branch.py
+++ b/swh/graphql/resolvers/snapshot_branch.py
@@ -45,12 +45,12 @@
     def _get_paged_result(self):
         """
         When branches requested from a snapshot
-        self.obj.SWHID is the snapshot SWHID here
+        self.obj.swhid is the snapshot SWHID here
         (as returned from resolvers/snapshot.py)
         """
 
         result = archive.Archive().get_snapshot_branches(
-            self.obj.SWHID.object_id,
+            self.obj.swhid.object_id,
             after=self._get_after_arg(),
             first=self._get_first_arg(),
             target_types=self.kwargs.get("types"),
diff --git a/swh/graphql/schema/schema.graphql b/swh/graphql/schema/schema.graphql
--- a/swh/graphql/schema/schema.graphql
+++ b/swh/graphql/schema/schema.graphql
@@ -26,7 +26,7 @@
   """
   SWHID of the object
   """
-  SWHID: SWHID!
+  swhid: SWHID!
 }
 
 """
@@ -336,7 +336,7 @@
   """
   SWHID of the snapshot object
   """
-  SWHID: SWHID!
+  swhid: SWHID!
 
   """
   Connection to all the snapshot branches
@@ -513,7 +513,7 @@
   """
   SWHID of the revision object
   """
-  SWHID: SWHID!
+  swhid: SWHID!
 
   """
   Message associated to the revision
@@ -602,7 +602,7 @@
   """
   SWHID of the release object
   """
-  SWHID: SWHID!
+  swhid: SWHID!
 
   """
   The name of the release
@@ -720,7 +720,7 @@
   """
   SWHID of the directory object
   """
-  SWHID: SWHID!
+  swhid: SWHID!
 
   """
   Connection to the directory entries
@@ -771,7 +771,7 @@
   """
   SWHID of the content object
   """
-  SWHID: SWHID!
+  swhid: SWHID!
 
   """
   Checksums for the content
@@ -845,7 +845,7 @@
     """
     SWHID of the snapshot object
     """
-    SWHID: SWHID!
+    swhid: SWHID!
   ): Snapshot
 
   """
@@ -855,7 +855,7 @@
     """
     SWHID of the revision object
     """
-    SWHID: SWHID!
+    swhid: SWHID!
   ): Revision
 
   """
@@ -865,7 +865,7 @@
     """
     SWHID of the release object
     """
-    SWHID: SWHID!
+    swhid: SWHID!
   ): Release
 
   """
@@ -875,7 +875,7 @@
     """
     SWHID of the directory object
     """
-    SWHID: SWHID!
+    swhid: SWHID!
   ): Directory
 
   """
@@ -885,6 +885,6 @@
     """
     SWHID of the content object
     """
-    SWHID: SWHID!
+    swhid: SWHID!
   ): Content
 }