diff --git a/tycho-p2/src/main/resources/plugin.xml b/tycho-p2/src/main/resources/plugin.xml
index d84d680861..27d10970f9 100644
--- a/tycho-p2/src/main/resources/plugin.xml
+++ b/tycho-p2/src/main/resources/plugin.xml
@@ -1,13 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <?eclipse version="3.4"?>
 <plugin>
-   <extension
-         point="org.eclipse.equinox.p2.artifact.repository.artifactChecksums">
-      <artifactChecksum
-            algorithm="SHA-1"
-            id="sha-1">
-      </artifactChecksum>
-   </extension>
    <extension
          id="org.eclipse.tycho.p2.maven.repository.LocalArtifactRepository"
          point="org.eclipse.equinox.p2.artifact.repository.artifactRepositories">