diff --git a/package/kasc/openh323/openssl-hotfix.patch.pwlib b/package/kasc/openh323/openssl-hotfix.patch.pwlib
new file mode 100644
index 000000000..5fa5a15ab
--- /dev/null
+++ b/package/kasc/openh323/openssl-hotfix.patch.pwlib
@@ -0,0 +1,45 @@
+--- ./src/ptclib/pssl.cxx.orig	2005-07-25 14:03:17.000000000 +0200
++++ ./src/ptclib/pssl.cxx	2005-07-25 14:03:54.000000000 +0200
+@@ -297,14 +297,14 @@
+ 
+ PSSLPrivateKey::PSSLPrivateKey(const BYTE * keyData, PINDEX keySize)
+ {
+-  key = d2i_AutoPrivateKey(NULL, (BYTE **)&keyData, keySize);
++  key = d2i_AutoPrivateKey(NULL, (const BYTE **)&keyData, keySize);
+ }
+ 
+ 
+ PSSLPrivateKey::PSSLPrivateKey(const PBYTEArray & keyData)
+ {
+   const BYTE * keyPtr = keyData;
+-  key = d2i_AutoPrivateKey(NULL, (BYTE **)&keyPtr, keyData.GetSize());
++  key = d2i_AutoPrivateKey(NULL, (const BYTE **)&keyPtr, keyData.GetSize());
+ }
+ 
+ 
+@@ -472,14 +472,14 @@
+ 
+ PSSLCertificate::PSSLCertificate(const BYTE * certData, PINDEX certSize)
+ {
+-  certificate = d2i_X509(NULL, (unsigned char **)&certData, certSize);
++  certificate = d2i_X509(NULL, (const unsigned char **)&certData, certSize);
+ }
+ 
+ 
+ PSSLCertificate::PSSLCertificate(const PBYTEArray & certData)
+ {
+   const BYTE * certPtr = certData;
+-  certificate = d2i_X509(NULL, (unsigned char **)&certPtr, certData.GetSize());
++  certificate = d2i_X509(NULL, (const unsigned char **)&certPtr, certData.GetSize());
+ }
+ 
+ 
+@@ -489,7 +489,7 @@
+   PBase64::Decode(certStr, certData);
+   if (certData.GetSize() > 0) {
+     const BYTE * certPtr = certData;
+-    certificate = d2i_X509(NULL, (unsigned char **)&certPtr, certData.GetSize());
++    certificate = d2i_X509(NULL, (const unsigned char **)&certPtr, certData.GetSize());
+   }
+   else
+     certificate = NULL;