diff --git a/src/datatypes.h b/src/datatypes.h
index 5830482922326f679c0189a9d6aead0157f833c2..d5258354faa0b6651e0eaa1f3f42eb1b25672316 100644
--- a/src/datatypes.h
+++ b/src/datatypes.h
@@ -696,11 +696,11 @@ virStoragePoolPtr virGetStoragePool(virConnectPtr conn,
                                     void *privateData,
                                     virFreeCallback freeFunc);
 virStorageVolPtr virGetStorageVol(virConnectPtr conn,
-                                     const char *pool,
-                                    const char *name,
-                                    const char *key,
-                                    void *privateData,
-                                    virFreeCallback freeFunc);
+                                  const char *pool,
+                                  const char *name,
+                                  const char *key,
+                                  void *privateData,
+                                  virFreeCallback freeFunc);
 virNodeDevicePtr virGetNodeDevice(virConnectPtr conn,
                                   const char *name);
 virSecretPtr virGetSecret(virConnectPtr conn,