diff --git a/org.eclipse.help.ui/.gitignore b/org.eclipse.help.ui/.gitignore
new file mode 100644
index 000000000..e2dd33063
--- /dev/null
+++ b/org.eclipse.help.ui/.gitignore
@@ -0,0 +1 @@
+/.polyglot.*
\ No newline at end of file
diff --git a/org.eclipse.tips.core/.gitignore b/org.eclipse.tips.core/.gitignore
index 09e3bc9b2..352354923 100644
--- a/org.eclipse.tips.core/.gitignore
+++ b/org.eclipse.tips.core/.gitignore
@@ -1,2 +1,3 @@
 /bin/
 /target/
+/.polyglot.*
diff --git a/org.eclipse.tips.examples/.gitignore b/org.eclipse.tips.examples/.gitignore
index 09e3bc9b2..352354923 100644
--- a/org.eclipse.tips.examples/.gitignore
+++ b/org.eclipse.tips.examples/.gitignore
@@ -1,2 +1,3 @@
 /bin/
 /target/
+/.polyglot.*
diff --git a/org.eclipse.tips.ide/.gitignore b/org.eclipse.tips.ide/.gitignore
index 09e3bc9b2..352354923 100644
--- a/org.eclipse.tips.ide/.gitignore
+++ b/org.eclipse.tips.ide/.gitignore
@@ -1,2 +1,3 @@
 /bin/
 /target/
+/.polyglot.*
diff --git a/org.eclipse.tips.json/.gitignore b/org.eclipse.tips.json/.gitignore
index 988e9b210..b92ab295d 100644
--- a/org.eclipse.tips.json/.gitignore
+++ b/org.eclipse.tips.json/.gitignore
@@ -1,3 +1,4 @@
 /target/
 /bin/
 /minimal-json-0.9.5-sources.jar
+/.polyglot.*
diff --git a/org.eclipse.tips.ui/.gitignore b/org.eclipse.tips.ui/.gitignore
index 0f630157f..fb1470e9a 100644
--- a/org.eclipse.tips.ui/.gitignore
+++ b/org.eclipse.tips.ui/.gitignore
@@ -1,2 +1,3 @@
 /target/
 /bin/
+/.polyglot.*
diff --git a/org.eclipse.ui.intro.universal/.gitignore b/org.eclipse.ui.intro.universal/.gitignore
new file mode 100644
index 000000000..c50980d82
--- /dev/null
+++ b/org.eclipse.ui.intro.universal/.gitignore
@@ -0,0 +1 @@
+/.polyglot.*