diff --git a/configure.in b/configure.in
index d7a3f2e06..5f715c264 100644
--- a/configure.in
+++ b/configure.in
@@ -38,7 +38,7 @@ AC_CHECK_LIB([curses], [initscr], LIBCURSES_FOUND=1, LIBCURSES_FOUND=0)
 
 # Checks for header files.
 AC_HEADER_STDC
-AC_CHECK_HEADERS([arpa/inet.h libintl.h limits.h locale.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
+AC_CHECK_HEADERS([arpa/inet.h libintl.h limits.h locale.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h sys/time.h sys/types.h unistd.h pwd.h errno.h])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_HEADER_TIME
diff --git a/weechat/configure.in b/weechat/configure.in
index d7a3f2e06..5f715c264 100644
--- a/weechat/configure.in
+++ b/weechat/configure.in
@@ -38,7 +38,7 @@ AC_CHECK_LIB([curses], [initscr], LIBCURSES_FOUND=1, LIBCURSES_FOUND=0)
 
 # Checks for header files.
 AC_HEADER_STDC
-AC_CHECK_HEADERS([arpa/inet.h libintl.h limits.h locale.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
+AC_CHECK_HEADERS([arpa/inet.h libintl.h limits.h locale.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h sys/time.h sys/types.h unistd.h pwd.h errno.h])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_HEADER_TIME