diff --git a/org/mozilla/jss/tests/all.pl b/org/mozilla/jss/tests/all.pl
index 25c8e023..e2d5bd88 100644
--- a/org/mozilla/jss/tests/all.pl
+++ b/org/mozilla/jss/tests/all.pl
@@ -422,7 +422,13 @@ my $result;
 my $command;
 my $serverCommand;

-$classpath = "/usr/share/java/slf4j/slf4j-api.jar:/usr/share/java/slf4j/slf4j-jdk14.jar:/usr/share/java/apache-commons-lang.jar:$jss_classpath";
+if( $ENV{BUILD4DEBIAN} ) {
+    $slf4j_jarFiles = "/usr/share/java/slf4j-api.jar:/usr/share/java/slf4j-jdk14.jar";
+} else {
+    $slf4j_jarFiles = "/usr/share/java/slf4j/slf4j-api.jar:/usr/share/java/slf4j/slf4j-jdk14.jar";
+}
+
+$classpath = "$slf4j_jarFiles:/usr/share/java/commons-lang.jar:$jss_classpath";

 $testname = "Test UTF-8 Converter";
 $command = "$java -cp $classpath org.mozilla.jss.tests.UTF8ConverterTest";