diff --git a/lib/core/libimagstore/src/configuration.rs b/lib/core/libimagstore/src/configuration.rs
index d0b3452d..3b9cc1e8 100644
--- a/lib/core/libimagstore/src/configuration.rs
+++ b/lib/core/libimagstore/src/configuration.rs
@@ -34,6 +34,7 @@ pub fn config_implicit_store_create_allowed(config: &Option<Value>) -> Result<bo
 
     if let Some(ref t) = *config {
         t.read_bool(key)
+            .context(format_err!("Error reading header '{}' in configuration", key))
             .map_err(Error::from)
             .context(EM::TomlQueryError)?
             .ok_or_else(|| format_err!("Config key missing: {}", key))
diff --git a/lib/core/libimagstore/src/storeid.rs b/lib/core/libimagstore/src/storeid.rs
index 2c504f2c..c1853652 100644
--- a/lib/core/libimagstore/src/storeid.rs
+++ b/lib/core/libimagstore/src/storeid.rs
@@ -184,6 +184,9 @@ impl<'a> StoreIdWithBase<'a> {
                store_part.display());
         let p = full_path
             .strip_prefix(store_part)
+            .context(format_err!("Cannot strip prefix '{}' from path: '{}'",
+                                 store_part.display(),
+                                 full_path.display()))
             .map_err(Error::from)
             .context(err_msg("Error building Store Id from full path"))?;
         Ok(StoreIdWithBase(store_part, PathBuf::from(p)))