diff --git a/vignettes/ConstrainedPredictors.Rmd b/vignettes/ConstrainedPredictors.Rmd
index 18623112c..2776122cb 100644
--- a/vignettes/ConstrainedPredictors.Rmd
+++ b/vignettes/ConstrainedPredictors.Rmd
@@ -36,20 +36,20 @@ Here we provide a set of phenotypes that can be used as predictors in prediction
 
 These phenotypes can be extracted from the PhenotypeLibrary R package.  To install the R package run:
 
-```{r echo = FALSE}
+```{r echo = T}
 remotes::install_github('ohdsi/PhenotypeLibrary')
 ```
 
 
 To extract the cohort definition for Alcoholism with an id of 1165, just run:
 
-```{r echo = FALSE}
+```{r echo = T}
 PhenotypeLibrary::getPlCohortDefinitionSet(1165)
 ```
 
 in general you can extract all the cohorts by running:
 
-```{r echo = FALSE}
+```{r echo = T}
 phenotypeDefinitions <- PhenotypeLibrary::getPlCohortDefinitionSet(1152:1215)
 ```