diff --git a/Makefile b/Makefile
index a2c7790d..584e0ef0 100644
--- a/Makefile
+++ b/Makefile
@@ -63,7 +63,8 @@ e2e-test : package
 	@bjforth/src/test/e2e/e2e-test-runner.pl \
 	  bjforth/build/libs/bjForth-$(VERSION).jar \
 	  bjforth/src/test/e2e/e2e-expected-output.txt \
-	  bjforth/src/test/e2e/e2e-tests.forth
+	  bjforth/src/test/e2e/e2e-tests.forth \
+	  bjforth/src/main/forth/bjForth.forth
 
 ####################################################################################################
 
diff --git a/bjforth/src/main/forth/bjForth.forth b/bjforth/src/main/forth/bjForth.forth
index 0024e37a..1035ec93 100644
--- a/bjforth/src/main/forth/bjForth.forth
+++ b/bjforth/src/main/forth/bjForth.forth
@@ -206,7 +206,7 @@
 
 ###################################################################################################
 
-: NUMBER->STR # ( x width -- )
+: NUM->STR # ( x width -- )
   DUP
   0<> IF
     SWAP 
@@ -227,3 +227,7 @@
 
 ###################################################################################################
 
+: . ( x -- )
+  0 
+  NUM->STR 
+;
diff --git a/bjforth/src/test/e2e/e2e-expected-output.txt b/bjforth/src/test/e2e/e2e-expected-output.txt
index 1a9dd10c..18155acd 100644
--- a/bjforth/src/test/e2e/e2e-expected-output.txt
+++ b/bjforth/src/test/e2e/e2e-expected-output.txt
@@ -9,4 +9,4 @@ Hello, world
 Hello, world
 24
 Hello, world
-BYE
+00000019 220 BYE
diff --git a/bjforth/src/test/e2e/e2e-test-runner.pl b/bjforth/src/test/e2e/e2e-test-runner.pl
index 4db86a03..7dc8487e 100755
--- a/bjforth/src/test/e2e/e2e-test-runner.pl
+++ b/bjforth/src/test/e2e/e2e-test-runner.pl
@@ -12,6 +12,7 @@
 my $jarFile = shift or die("Path to JAR file not provided.");
 my $expectedOutputFile = shift or die("Path to expected output file not provided.");
 my $testCodeFile = shift or die("Path to test code not provided.");
+my $libraryFile = shift or die("Path to bjForth.forth not provided.");
 
 open(my $fh, '<', $expectedOutputFile) or die("open(): $!");
 my $expectedOutput = do { local($/); <$fh> };
@@ -19,10 +20,10 @@
 
 ### End of stream should mean a graceful exit
 
-my $actualOutput = qx/java -jar ${jarFile} 2>&1 < ${testCodeFile}/;
+my $actualOutput = qx/cat ${libraryFile} ${testCodeFile} | java -jar ${jarFile} 2>&1/;
 
 if ($actualOutput eq $expectedOutput) {
   exit 0;
 } else {
   die("E2E tests failed.\nActual output is\n\n${actualOutput}");
-}
\ No newline at end of file
+}
diff --git a/bjforth/src/test/e2e/e2e-tests.forth b/bjforth/src/test/e2e/e2e-tests.forth
index b263ee9c..35452a9b 100644
--- a/bjforth/src/test/e2e/e2e-tests.forth
+++ b/bjforth/src/test/e2e/e2e-tests.forth
@@ -62,3 +62,10 @@ PRINT-ME
 ;
 
 ." Hello, world ". NEW-STRING 
+
+###################################################################################################
+# Printing numbers
+###################################################################################################
+
+25 8 HEX NUM->STR
+220 .