2 files changed, 26 insertions, 0 deletions
diff --git a/api/graphql/schema/mutations.graphql b/api/graphql/schema/mutations.graphql
index e6b70faf..d7adde1e 100644
--- a/api/graphql/schema/mutations.graphql
+++ b/api/graphql/schema/mutations.graphql
@@ -42,6 +42,30 @@ type AddCommentPayload {
     operation: AddCommentOperation!
 }
 
+input EditCommentInput {
+    """A unique identifier for the client performing the mutation."""
+    clientMutationId: String
+    """"The name of the repository. If not set, the default repository is used."""
+    repoRef: String
+    """The bug ID's prefix."""
+    prefix: String!
+    """The ID of the comment to be changed."""
+    target: String!
+    """The new message to be set."""
+    message: String!
+    """The collection of file's hash required for the first message."""
+    files: [Hash!]
+}
+
+type EditCommentPayload {
+    """A unique identifier for the client performing the mutation."""
+    clientMutationId: String
+    """The affected bug."""
+    bug: Bug!
+    """The resulting operation."""
+    operation: EditCommentOperation!
+}
+
 input ChangeLabelInput {
     """A unique identifier for the client performing the mutation."""
     clientMutationId: String
diff --git a/api/graphql/schema/root.graphql b/api/graphql/schema/root.graphql
index 94a0b530..884fd98d 100644
--- a/api/graphql/schema/root.graphql
+++ b/api/graphql/schema/root.graphql
@@ -8,6 +8,8 @@ type Mutation {
     newBug(input: NewBugInput!): NewBugPayload!
     """Add a new comment to a bug"""
     addComment(input: AddCommentInput!): AddCommentPayload!
+    """Change a comment of a bug"""
+    editComment(input: EditCommentInput!): EditCommentPayload!
     """Add or remove a set of label on a bug"""
     changeLabels(input: ChangeLabelInput): ChangeLabelPayload!
     """Change a bug's status to open"""