diff --git a/libimagstore/src/hook/accessor.rs b/libimagstore/src/hook/accessor.rs
index b3c1f0f1..a8dcb45c 100644
--- a/libimagstore/src/hook/accessor.rs
+++ b/libimagstore/src/hook/accessor.rs
@@ -1,5 +1,10 @@
 use hook::result::HookResult;
 use store::FileLockEntry;
+use storeid::StoreId;
+
+pub trait StoreIdAccessor : Send + Sync {
+    fn access(&self, &StoreId) -> HookResult<()>;
+}
 
 pub trait MutableHookDataAccessor : Send + Sync {
     fn access_mut(&self, &mut FileLockEntry) -> HookResult<()>;
@@ -10,6 +15,7 @@ pub trait NonMutableHookDataAccessor : Send + Sync {
 }
 
 pub enum HookDataAccessor {
+    StoreIdAccess(Box<StoreIdAccessor>),
     MutableAccess(Box<MutableHookDataAccessor>),
     NonMutableAccess(Box<NonMutableHookDataAccessor>),
 }
diff --git a/libimagstore/src/store.rs b/libimagstore/src/store.rs
index 3090ad6a..c07c30d0 100644
--- a/libimagstore/src/store.rs
+++ b/libimagstore/src/store.rs
@@ -498,19 +498,25 @@ impl Store {
                 match accessor.deref() {
                     &HDA::MutableAccess(ref accessor) => {
                         match acc {
-                            Ok(mut fle) => accessor.access_mut(&mut fle).and(Ok(fle)),
-                            Err(e)      => Err(e),
+                            Ok(mut fle) => accessor
+                                .access_mut(&mut fle)
+                                .and(Ok(fle))
+                                .map_err(|e| SE::new(SEK::HookExecutionError, Some(Box::new(e)))),
+                            Err(e)      => Err(SE::new(SEK::HookExecutionError, Some(Box::new(e)))),
                         }
                     },
                     &HDA::NonMutableAccess(ref accessor) => {
                         match acc {
-                            Ok(mut fle) => accessor.access(&fle).and(Ok(fle)),
-                            Err(e)      => Err(e),
+                            Ok(mut fle) => accessor
+                                .access(&fle)
+                                .and(Ok(fle))
+                                .map_err(|e| SE::new(SEK::HookExecutionError, Some(Box::new(e)))),
+                            Err(e)      => Err(SE::new(SEK::HookExecutionError, Some(Box::new(e)))),
                         }
                     },
+                    _ => Err(StoreError::new(StoreErrorKind::HookExecutionError, None)),
                 }
             })
-            .map_err(|e| SE::new(SEK::HookExecutionError, Some(Box::new(e))))
         }
     }