diff --git a/src/matrix-c-types.c b/src/matrix-c-types.c
index 6fe14c7..0be7c27 100644
--- a/src/matrix-c-types.c
+++ b/src/matrix-c-types.c
@@ -228,3 +228,12 @@ G_DEFINE_QUARK(matrix-error-quark, matrix_error);
  *
  * Search ordering.
  */
+
+/**
+ * MatrixSearchKey:
+ * @MATRIX_SEARCH_KEY_CONTENT_BODY: search in the body of a message
+ * @MATRIX_SEARCH_KEY_CONTENT_NAME: search in the name of rooms
+ * @MATRIX_SEARCH_KEY_CONTENT_TOPIC: search in the topic of rooms
+ *
+ * Search keys.
+ */
diff --git a/src/matrix-c-types.h b/src/matrix-c-types.h
index 63a4fb6..c3f49fe 100644
--- a/src/matrix-c-types.h
+++ b/src/matrix-c-types.h
@@ -159,4 +159,10 @@ typedef enum {
     MATRIX_SEARCH_ORDER_RANK
 } MatrixSearchOrder;
 
+typedef enum {
+    MATRIX_SEARCH_KEY_CONTENT_BODY,
+    MATRIX_SEARCH_KEY_CONTENT_NAME,
+    MATRIX_SEARCH_KEY_CONTENT_TOPIC
+} MatrixSearchKey;
+
 #endif  /* __MATRIX_TYPE_H__ */
diff --git a/src/matrix-types.vala b/src/matrix-types.vala
index b0d765d..93edd99 100644
--- a/src/matrix-types.vala
+++ b/src/matrix-types.vala
@@ -17,26 +17,6 @@
  */
 
 namespace Matrix {
-    /**
-     * Search keys.
-     */
-    public enum SearchKey {
-        /**
-         * search in the body of a message
-         */
-        CONTENT_BODY,
-
-        /**
-         * search in the name of rooms
-         */
-        CONTENT_NAME,
-
-        /**
-         * search in the topic of rooms
-         */
-        CONTENT_TOPIC;
-    }
-
     /**
      * Search grouping
      *
diff --git a/vapi/c-api.vapi b/vapi/c-api.vapi
index bf3f72c..6d8bba6 100644
--- a/vapi/c-api.vapi
+++ b/vapi/c-api.vapi
@@ -162,6 +162,13 @@ namespace Matrix {
         RANK;
     }
 
+    [CCode (cheader_filename = "matrix-enumtypes.h", cprefix = "MATRIX_SEARCH_KEY_")]
+    public enum SearchKey {
+        CONTENT_BODY,
+        CONTENT_NAME,
+        CONTENT_TOPIC;
+    }
+
     /**
      * The major version number of the Matrix.org GLib SDK.
      */