diff --git a/lib/entry/libimagentryutil/src/isa.rs b/lib/entry/libimagentryutil/src/isa.rs
index ba634c9c..835fb5e7 100644
--- a/lib/entry/libimagentryutil/src/isa.rs
+++ b/lib/entry/libimagentryutil/src/isa.rs
@@ -23,6 +23,7 @@ use failure::Error;
 use toml::Value;
 use toml_query::read::TomlValueReadTypeExt;
 use toml_query::insert::TomlValueInsertExt;
+use toml_query::delete::TomlValueDeleteExt;
 
 /// Trait to check whether an entry is a certain kind of entry
 ///
@@ -71,6 +72,7 @@ use toml_query::insert::TomlValueInsertExt;
 pub trait Is {
     fn is<T: IsKindHeaderPathProvider>(&self) -> Result<bool>;
     fn set_isflag<T: IsKindHeaderPathProvider>(&mut self) -> Result<()>;
+    fn remove_isflag<T: IsKindHeaderPathProvider>(&mut self) -> Result<()>;
 }
 
 impl Is for ::libimagstore::store::Entry {
@@ -89,6 +91,13 @@ impl Is for ::libimagstore::store::Entry {
             .map_err(Error::from)
             .map(|_| ())
     }
+
+    fn remove_isflag<T: IsKindHeaderPathProvider>(&mut self) -> Result<()> {
+        self.get_header_mut()
+            .delete(T::kindflag_header_location())
+            .map_err(Error::from)
+            .map(|_| ())
+    }
 }