diff --git a/.project b/.project
index 1ace49604..259ea2655 100644
--- a/.project
+++ b/.project
@@ -5,6 +5,11 @@
 	<projects>
 	</projects>
 	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.ide.tests/.project b/org.eclipse.xtext.ide.tests/.project
index b63881c1c..189d0c567 100644
--- a/org.eclipse.xtext.ide.tests/.project
+++ b/org.eclipse.xtext.ide.tests/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.ide/.project b/org.eclipse.xtext.ide/.project
index 1d9b1562e..19a65ecb5 100644
--- a/org.eclipse.xtext.ide/.project
+++ b/org.eclipse.xtext.ide/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.testing/.project b/org.eclipse.xtext.testing/.project
index f86f2856b..c3ecece48 100644
--- a/org.eclipse.xtext.testing/.project
+++ b/org.eclipse.xtext.testing/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.testlanguages.ide/.project b/org.eclipse.xtext.testlanguages.ide/.project
index 5fb7de12c..175d535a2 100644
--- a/org.eclipse.xtext.testlanguages.ide/.project
+++ b/org.eclipse.xtext.testlanguages.ide/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.testlanguages/.project b/org.eclipse.xtext.testlanguages/.project
index 3f909b41e..8ea51f710 100644
--- a/org.eclipse.xtext.testlanguages/.project
+++ b/org.eclipse.xtext.testlanguages/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.tests/.project b/org.eclipse.xtext.tests/.project
index 08876e895..f42e37da1 100644
--- a/org.eclipse.xtext.tests/.project
+++ b/org.eclipse.xtext.tests/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.util/.project b/org.eclipse.xtext.util/.project
index 2bd39eea9..92f779a2d 100644
--- a/org.eclipse.xtext.util/.project
+++ b/org.eclipse.xtext.util/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.xtext.bootstrap/.project b/org.eclipse.xtext.xtext.bootstrap/.project
index e9ae22b81..771577e67 100644
--- a/org.eclipse.xtext.xtext.bootstrap/.project
+++ b/org.eclipse.xtext.xtext.bootstrap/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.jdt.core.javanature</nature>
diff --git a/org.eclipse.xtext.xtext.generator/.project b/org.eclipse.xtext.xtext.generator/.project
index 2ed4d6fd8..a6e80ff8d 100644
--- a/org.eclipse.xtext.xtext.generator/.project
+++ b/org.eclipse.xtext.xtext.generator/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.xtext.ide/.project b/org.eclipse.xtext.xtext.ide/.project
index 71297fddb..c07c6d084 100644
--- a/org.eclipse.xtext.xtext.ide/.project
+++ b/org.eclipse.xtext.xtext.ide/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext.xtext.wizard/.project b/org.eclipse.xtext.xtext.wizard/.project
index df4bb4b44..cf0f054bf 100644
--- a/org.eclipse.xtext.xtext.wizard/.project
+++ b/org.eclipse.xtext.xtext.wizard/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>
diff --git a/org.eclipse.xtext/.project b/org.eclipse.xtext/.project
index c6c3ec72d..e30585a4c 100644
--- a/org.eclipse.xtext/.project
+++ b/org.eclipse.xtext/.project
@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.buildship.core.gradleprojectbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.buildship.core.gradleprojectnature</nature>