diff --git a/script/ghci b/script/ghci
index 736cfa3..e51a06f 100755
--- a/script/ghci
+++ b/script/ghci
@@ -5,6 +5,7 @@
 set -e
 
 export GH_NO_UPDATE_NOTIFIER=1
+unset BROWSER
 
 # GitHub CLI returns non-zero error code if checks are not complete:
 ghoutput=$(gh pr checks || true)
diff --git a/script/ghco b/script/ghco
index 6e17121..688c6e9 100755
--- a/script/ghco
+++ b/script/ghco
@@ -4,6 +4,7 @@
 set -e
 
 export GH_NO_UPDATE_NOTIFIER=1
+unset BROWSER
 
 if [ "$1" = '-a' ]; then
   cmd='gh pr list --limit 100' 
diff --git a/script/ghpr b/script/ghpr
index 07d5fb0..6b3727c 100755
--- a/script/ghpr
+++ b/script/ghpr
@@ -3,6 +3,7 @@
 # Open or create a GitHub PR in the browser
 
 export GH_NO_UPDATE_NOTIFIER=1
+unset BROWSER
 
 currentbranch="$(git bn)"
 if [ "$currentbranch" = "staging" ] || [ "$currentbranch" = "master" ]; then