diff --git a/slf4j.spec b/slf4j.spec
index 04aea41..1192fd9 100644
--- a/slf4j.spec
+++ b/slf4j.spec
@@ -146,7 +146,11 @@ sed -i -e "s|ant<|org.apache.ant<|g" integration/pom.xml
     %{_bindir}/xargs -t perl -pi -e 's/\r$//g'
 
 # Unexpanded variable in the manifests
-perl -pi -e 's#\$\{parsedVersion\.osgiVersion\}#%{version}#g'  */src/main/resources/META-INF/MANIFEST.MF
+for i in */src/main/resources/META-INF/MANIFEST.MF; do
+  echo "Bundle-Version: %{version}" >> ${i}
+  perl -pi -e 's#\$\{parsedVersion\.osgiVersion\}#%{version}#g' ${i}
+  perl -pi -e 's#\$\{slf4j\.api\.minimum\.compatible\.version\}#1\.6\.0#g' ${i}
+done
 
 # The general pattern is that the API package exports API classes and does
 # # not require impl classes. slf4j was breaking that causing "A cycle was