diff --git a/Changes b/Changes
index 1de7f5ecb..1dd4ee934 100644
--- a/Changes
+++ b/Changes
@@ -1919,3 +1919,6 @@
 - Reverted the revert and updated one line to fix the fix.
 - Fix for --with-system-cares, reported and patch provided by ohnobinki
   (#0003890).
+- Another c-ares fix for Solaris 10, this time it had to do with
+  PATH_SEPARATOR, the exact error was: error: PATH_SEPARATOR not set.
+  Reported by j0inty, patch provided by ohnobinki (#0003887).
diff --git a/autoconf/configure.in b/autoconf/configure.in
index f52d346c6..2fb7d9eb7 100644
--- a/autoconf/configure.in
+++ b/autoconf/configure.in
@@ -429,6 +429,11 @@ IRCDLIBS="$IRCDLIBS -lresolv "
 ;;
 esac
 
+dnl c-ares needs PATH_SEPARATOR set or it will
+dnl fail on certain solaris boxes. We might as
+dnl well set it here.
+export PATH_SEPARATOR
+
 AS_IF([test "x$with_system_tre" = "xno"],[
 dnl REMEMBER TO CHANGE WITH A NEW TRE RELEASE!
 tre_version="0.7.5"
diff --git a/configure b/configure
index 25740c04e..77acba879 100755
--- a/configure
+++ b/configure
@@ -13147,6 +13147,8 @@ IRCDLIBS="$IRCDLIBS -lresolv "
 ;;
 esac
 
+export PATH_SEPARATOR
+
 
 
 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then