diff --git a/t/00-load.t b/t/00-load.t
index 500218777368a7bd883bded251fe9d36dbcec49d..cbcaf6dbbfa1e65355e7da4cd585b7ce0faf6d30 100644
--- a/t/00-load.t
+++ b/t/00-load.t
@@ -6,4 +6,8 @@ BEGIN {
     use_ok( 'SLUB::LZA::TA' ) || print "Bail out!\n";
 }
 
-diag( "Testing SLUB::LZA::TA $SLUB::LZA::TA::VERSION, Perl $], $^X" );
+if (defined $SLUB::LZA::TA::VERSION) {
+    diag("Testing SLUB::LZA::TA $SLUB::LZA::TA::VERSION, Perl $], $^X");
+} else {
+    diag("Testing SLUB::LZA::TA (pre installed version), Perl $], $^X");
+}