diff --git a/demo/X3D.R b/demo/X3D.R
index 8e0d388..f8f9929 100644
--- a/demo/X3D.R
+++ b/demo/X3D.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("3D")
diff --git a/demo/breast.R b/demo/breast.R
index 470dd1c..b969df6 100644
--- a/demo/breast.R
+++ b/demo/breast.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("breast")
diff --git a/demo/colorectal.R b/demo/colorectal.R
index 63ef4ce..c3c3a9d 100644
--- a/demo/colorectal.R
+++ b/demo/colorectal.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("colorectal")
diff --git a/demo/glucose.R b/demo/glucose.R
index d84d47c..98e95a5 100644
--- a/demo/glucose.R
+++ b/demo/glucose.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("glucose")
diff --git a/demo/hypoxia.R b/demo/hypoxia.R
index 08f655e..6bdce42 100644
--- a/demo/hypoxia.R
+++ b/demo/hypoxia.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("hypoxia")
diff --git a/demo/liver.R b/demo/liver.R
index 710f5e1..ea287e9 100644
--- a/demo/liver.R
+++ b/demo/liver.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("liver")
diff --git a/demo/lung.R b/demo/lung.R
index bbd8987..a72b469 100644
--- a/demo/lung.R
+++ b/demo/lung.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("lung")
diff --git a/demo/osmotic_bact.R b/demo/osmotic_bact.R
index 9e0252b..691035c 100644
--- a/demo/osmotic_bact.R
+++ b/demo/osmotic_bact.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("osmotic_bact")
diff --git a/demo/osmotic_euk.R b/demo/osmotic_euk.R
index ac53c25..69e00d8 100644
--- a/demo/osmotic_euk.R
+++ b/demo/osmotic_euk.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("osmotic_euk")
diff --git a/demo/osmotic_halo.R b/demo/osmotic_halo.R
index 3e40c44..cb1db31 100644
--- a/demo/osmotic_halo.R
+++ b/demo/osmotic_halo.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("osmotic_halo")
diff --git a/demo/pancreatic.R b/demo/pancreatic.R
index 9d488a1..06870ee 100644
--- a/demo/pancreatic.R
+++ b/demo/pancreatic.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("pancreatic")
diff --git a/demo/prostate.R b/demo/prostate.R
index 273b175..369d6b9 100644
--- a/demo/prostate.R
+++ b/demo/prostate.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("prostate")
diff --git a/demo/secreted.R b/demo/secreted.R
index c5f6deb..4d27903 100644
--- a/demo/secreted.R
+++ b/demo/secreted.R
@@ -1 +1,2 @@
+library(canprot)
 mkvig("secreted")