diff --git a/R/localVariance.R b/R/localVariance.R
index d4a84df..6b2d29c 100644
--- a/R/localVariance.R
+++ b/R/localVariance.R
@@ -24,6 +24,7 @@
 #' # for more details see extended example in vignettes
 #' library(SpotSweeper)
 #' library(SpatialExperiment)
+#' library(escheR)
 #'
 #' # load example data
 #' spe <- STexampleData::Visium_humanDLPFC()
diff --git a/man/localVariance.Rd b/man/localVariance.Rd
index 733d227..b1e60d0 100644
--- a/man/localVariance.Rd
+++ b/man/localVariance.Rd
@@ -39,6 +39,7 @@ This function does calculates the local variance based on kNN.
 # for more details see extended example in vignettes
 library(SpotSweeper)
 library(SpatialExperiment)
+library(escheR)
 
 # load example data
 spe <- STexampleData::Visium_humanDLPFC()