diff --git a/lucene/common-build.xml b/lucene/common-build.xml
index a76bda759ce..c4c81262bf6 100644
--- a/lucene/common-build.xml
+++ b/lucene/common-build.xml
@@ -47,13 +47,22 @@
     <format property="dateversion" pattern="yyyy.MM.dd.HH.mm.ss" />
   </tstamp>
 
-  <property name="name" value="${ant.project.name}"/>
   <property name="Name" value="Lucene"/>
-  <property name="dev.version" value="5.0-SNAPSHOT"/>
+  
+  <property name="name" value="${ant.project.name}"/>
   <property name="tests.luceneMatchVersion" value="5.0"/>
+  <property name="dev.version.base" value="5.0"/>
+  <property name="dev.version.suffix" value="SNAPSHOT"/>
+  <property name="dev.version" value="${dev.version.base}-${dev.version.suffix}"/>
   <property name="version" value="${dev.version}"/>
   <property name="spec.version" value="${version}"/>	
+  
   <property name="year" value="2000-${current.year}"/>
+  
+  <!-- Lucene modules unfortunately don't have the "lucene-" prefix, so we add it if no prefix is given in $name: -->
+  <condition property="final.name" value="${name}-${version}">
+    <matches pattern="^(lucene|solr)\b" string="${name}"/>
+  </condition>
   <property name="final.name" value="lucene-${name}-${version}"/>
 
   <!-- we exclude ext/*.jar because we don't want example/lib/ext logging jars on the cp -->
diff --git a/solr/common-build.xml b/solr/common-build.xml
index 9e483f69e5d..cc7336bc289 100644
--- a/solr/common-build.xml
+++ b/solr/common-build.xml
@@ -24,10 +24,6 @@
   <dirname file="${ant.file.common-solr}" property="common-solr.dir"/>
   
   <property name="Name" value="Solr" />
-  <property name="version" value="5.0-SNAPSHOT"/>
-  <property name="fullname" value="${ant.project.name}"/>
-  <property name="fullnamever" value="${fullname}-${version}"/>
-  <property name="final.name" value="${fullnamever}"/>
   
   <!-- solr uses 1.7 -->
   <property name="javac.source" value="1.7"/>
@@ -50,6 +46,9 @@
 
   <import file="${common-solr.dir}/../lucene/module-build.xml"/>
 
+  <!-- backwards compatibility with existing targets/tasks; TODO: remove this! -->
+  <property name="fullnamever" value="${final.name}"/>
+
   <path id="additional.dependencies">
   	<fileset dir="${common-solr.dir}/core/lib" excludes="${common.classpath.excludes}"/>
   	<fileset dir="${common-solr.dir}/solrj/lib" excludes="${common.classpath.excludes}"/>