diff --git a/java/libraries/dxf/build.xml b/java/libraries/dxf/build.xml
index 5f4719dac..4e77c39aa 100755
--- a/java/libraries/dxf/build.xml
+++ b/java/libraries/dxf/build.xml
@@ -3,7 +3,7 @@
   
   <target name="clean" description="Clean the build directories">
     <delete dir="bin" />
-    <delete file="library/net.jar" />
+    <delete file="library/dxf.jar" />
   </target>
   
   <target name="compile" description="Compile sources">
diff --git a/java/libraries/pdf/build.xml b/java/libraries/pdf/build.xml
index c122c2876..e10313534 100755
--- a/java/libraries/pdf/build.xml
+++ b/java/libraries/pdf/build.xml
@@ -3,7 +3,7 @@
   
   <target name="clean" description="Clean the build directories">
     <delete dir="bin" />
-    <delete dir="library/pdf.jar" />
+    <delete file="library/pdf.jar" />
   </target>
   
   <target name="compile" description="Compile sources">