diff --git a/de.marw.cmake4eclipse.mbs/plugin.xml b/de.marw.cmake4eclipse.mbs/plugin.xml
index 4a8ae33f..90baa185 100644
--- a/de.marw.cmake4eclipse.mbs/plugin.xml
+++ b/de.marw.cmake4eclipse.mbs/plugin.xml
@@ -152,6 +152,7 @@
        name="Cmake4eclipse buildscript generator"
        point="org.eclipse.core.resources.builders">
     <builder
+          callOnEmptyDelta="true"
           hasNature="true">
        <run
              class="org.eclipse.cdt.managedbuilder.internal.core.CommonBuilder">
diff --git a/de.marw.cmake4eclipse.mbs/src/main/java/de/marw/cmake4eclipse/mbs/nature/C4ENature.java b/de.marw.cmake4eclipse.mbs/src/main/java/de/marw/cmake4eclipse/mbs/nature/C4ENature.java
index a47c77b3..ea07c116 100644
--- a/de.marw.cmake4eclipse.mbs/src/main/java/de/marw/cmake4eclipse/mbs/nature/C4ENature.java
+++ b/de.marw.cmake4eclipse.mbs/src/main/java/de/marw/cmake4eclipse/mbs/nature/C4ENature.java
@@ -20,6 +20,7 @@
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IProjectDescription;
 import org.eclipse.core.resources.IProjectNature;
+import org.eclipse.core.resources.IncrementalProjectBuilder;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.NullProgressMonitor;
@@ -60,7 +61,8 @@ private void addBuilders(IProgressMonitor monitor) throws CoreException {
 
     ICommand bldrCommand = description.newCommand();
     bldrCommand.setBuilderName(Activator.BUILDER_ID);
-//    bldrCommand.setBuilding(IncrementalProjectBuilder.AUTO_BUILD, false);
+    // do not run on each resource delta change..
+    bldrCommand.setBuilding(IncrementalProjectBuilder.INCREMENTAL_BUILD, false);
 
     List<ICommand> commands = new ArrayList<>(Arrays.asList(description.getBuildSpec()));
     commands.add(0, bldrCommand);