diff --git a/org.eclipse.example.calc.test/META-INF/MANIFEST.MF b/org.eclipse.example.calc.test/META-INF/MANIFEST.MF
index 3e05071..203320f 100644
--- a/org.eclipse.example.calc.test/META-INF/MANIFEST.MF
+++ b/org.eclipse.example.calc.test/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.example.calc.test
 Bundle-Version: 0.1.0.qualifier
 Fragment-Host: org.eclipse.example.calc;bundle-version="[0.1.0,0.2.0)"
-Bundle-RequiredExecutionEnvironment: J2SE-1.6
+Bundle-RequiredExecutionEnvironment: JavaSE-1.6
 Require-Bundle: org.junit4;bundle-version="[4.3.0,5.0.0)",
  org.hamcrest;bundle-version="[1.1.0,2.0.0)"
 Import-Package: org.eclipse.example.calc.internal;version="[0.1.0,0.2.0)"
diff --git a/org.eclipse.example.calc/META-INF/MANIFEST.MF b/org.eclipse.example.calc/META-INF/MANIFEST.MF
index 31d5118..5c98d08 100644
--- a/org.eclipse.example.calc/META-INF/MANIFEST.MF
+++ b/org.eclipse.example.calc/META-INF/MANIFEST.MF
@@ -4,7 +4,7 @@
 Bundle-SymbolicName: org.eclipse.example.calc
 Bundle-Version: 0.1.0.qualifier
 Bundle-ActivationPolicy: lazy
-Bundle-RequiredExecutionEnvironment: J2SE-1.6
+Bundle-RequiredExecutionEnvironment: JavaSE-1.6
 Require-Bundle: org.eclipse.swt;bundle-version="[3.5.0,4.0.0)"
 Export-Package: org.eclipse.example.calc;version="0.1.0",
  org.eclipse.example.calc.internal;version="0.1.0";x-internal:=true,