diff --git a/R/investigateSignature.R b/R/investigateSignature.R
index 7a53fce..6052202 100644
--- a/R/investigateSignature.R
+++ b/R/investigateSignature.R
@@ -45,7 +45,7 @@ NULL
 #'
 #' # Load and prepare the signature
 #' inputSignature <- read.table(system.file("extdata",
-#'     "dCovid_diffexp.tsv.tar.xz",
+#'     "dCovid_diffexp.tsv",
 #'     package = "drugfindR"
 #' ), header = TRUE)
 #'
diff --git a/R/prepareSignature.R b/R/prepareSignature.R
index 3055597..59529a8 100644
--- a/R/prepareSignature.R
+++ b/R/prepareSignature.R
@@ -23,7 +23,7 @@
 #' # Prepare an L1000 signature from a differential gene expression output
 #'
 #' inputSignature <- read.table(system.file("extdata",
-#'     "dCovid_diffexp.tsv.tar.xz",
+#'     "dCovid_diffexp.tsv",
 #'     package = "drugfindR"
 #' ), header = TRUE)
 #'
diff --git a/man/investigateSignature.Rd b/man/investigateSignature.Rd
index cfd8cb4..fc107b1 100644
--- a/man/investigateSignature.Rd
+++ b/man/investigateSignature.Rd
@@ -73,7 +73,7 @@ iLINCS to find the relevant concordant (or discordant) signatures
 
 # Load and prepare the signature
 inputSignature <- read.table(system.file("extdata",
-    "dCovid_diffexp.tsv.tar.xz",
+    "dCovid_diffexp.tsv",
     package = "drugfindR"
 ), header = TRUE)
 
diff --git a/man/prepareSignature.Rd b/man/prepareSignature.Rd
index e18d9b3..8598cf0 100644
--- a/man/prepareSignature.Rd
+++ b/man/prepareSignature.Rd
@@ -35,7 +35,7 @@ and transforms that into an L1000 signature for later processing.
 # Prepare an L1000 signature from a differential gene expression output
 
 inputSignature <- read.table(system.file("extdata",
-    "dCovid_diffexp.tsv.tar.xz",
+    "dCovid_diffexp.tsv",
     package = "drugfindR"
 ), header = TRUE)