diff --git a/cpp/.gitignore.jinja b/cpp/.gitignore.jinja
index 2db6364..3604ba8 100644
--- a/cpp/.gitignore.jinja
+++ b/cpp/.gitignore.jinja
@@ -138,7 +138,6 @@ docs/index.md
 docs/html
 docs/jupyter_execute
 index.md
-_template/labextension
 
 # JS
 js/coverage
diff --git a/js/.gitignore.jinja b/js/.gitignore.jinja
index 2db6364..3604ba8 100644
--- a/js/.gitignore.jinja
+++ b/js/.gitignore.jinja
@@ -138,7 +138,6 @@ docs/index.md
 docs/html
 docs/jupyter_execute
 index.md
-_template/labextension
 
 # JS
 js/coverage
diff --git a/jupyter/.gitignore.jinja b/jupyter/.gitignore.jinja
index 2db6364..3604ba8 100644
--- a/jupyter/.gitignore.jinja
+++ b/jupyter/.gitignore.jinja
@@ -138,7 +138,6 @@ docs/index.md
 docs/html
 docs/jupyter_execute
 index.md
-_template/labextension
 
 # JS
 js/coverage
diff --git a/python/.gitignore.jinja b/python/.gitignore.jinja
index 2db6364..3604ba8 100644
--- a/python/.gitignore.jinja
+++ b/python/.gitignore.jinja
@@ -138,7 +138,6 @@ docs/index.md
 docs/html
 docs/jupyter_execute
 index.md
-_template/labextension
 
 # JS
 js/coverage
diff --git a/rust/.gitignore.jinja b/rust/.gitignore.jinja
index 2db6364..3604ba8 100644
--- a/rust/.gitignore.jinja
+++ b/rust/.gitignore.jinja
@@ -138,7 +138,6 @@ docs/index.md
 docs/html
 docs/jupyter_execute
 index.md
-_template/labextension
 
 # JS
 js/coverage