diff --git a/packages/Symbian/group/libcurl.mmp b/packages/Symbian/group/libcurl.mmp
index 13ab8ba54be66d62d46b6b3d7bc1ea60eca1c6d6..cac26d5a8e009a31d2d66528e74beeede29ed6d1 100644
--- a/packages/Symbian/group/libcurl.mmp
+++ b/packages/Symbian/group/libcurl.mmp
@@ -32,7 +32,7 @@ SOURCE \
   inet_ntop.c parsedate.c select.c gtls.c sslgen.c tftp.c splay.c   \
   strdup.c socks.c ssh.c nss.c qssl.c rawstr.c curl_addrinfo.c      \
   socks_gssapi.c socks_sspi.c curl_sspi.c slist.c nonblock.c        \
-  curl_memrchr.c imap.c pop3.c smtp.c pingpong.c rtsp.c
+  curl_memrchr.c imap.c pop3.c smtp.c pingpong.c rtsp.c curl_threads.c
 
 USERINCLUDE   ../../../lib ../../../include/curl
 #ifdef ENABLE_SSL
diff --git a/packages/TPF/curl.mak b/packages/TPF/curl.mak
index 50647e55e08633bdd40fc8b98e300ba447a95bae..8f55a3febcc502526f8760378d3f7f6f8b046b48 100644
--- a/packages/TPF/curl.mak
+++ b/packages/TPF/curl.mak
@@ -38,6 +38,7 @@ C_SRC += curl_addrinfo.c
 C_SRC += curl_memrchr.c
 C_SRC += curl_rand.c
 C_SRC += curl_sspi.c
+C_SRC += curl_threads.c
 C_SRC += dict.c
 C_SRC += easy.c
 C_SRC += escape.c