diff --git a/src/input_handler.cc b/src/input_handler.cc
index bdee3b2b..1f947b66 100644
--- a/src/input_handler.cc
+++ b/src/input_handler.cc
@@ -554,7 +554,7 @@ static BufferCompletion complete_opt(const Buffer& buffer,
         return {};
 
     auto& desc = opt[0];
-    static const Regex re(R"((\d+):(\d+)(?:\+(\d+))?@(\d+))");
+    static const Regex re(R"((\d+)\.(\d+)(?:\+(\d+))?@(\d+))");
     boost::smatch match;
     if (boost::regex_match(desc.begin(), desc.end(), match, re))
     {
diff --git a/src/option_types.hh b/src/option_types.hh
index df2295ce..9c07a6c1 100644
--- a/src/option_types.hh
+++ b/src/option_types.hh
@@ -30,7 +30,7 @@ inline void option_from_string(const String& str, bool& opt)
         throw runtime_error("boolean values are either true, yes, false or no");
 }
 
-constexpr Codepoint list_separator = ';';
+constexpr Codepoint list_separator = ':';
 
 template<typename T>
 String option_to_string(const std::vector<T>& opt)
diff --git a/src/rc/clang.kak b/src/rc/clang.kak
index 394e3819..22571b25 100644
--- a/src/rc/clang.kak
+++ b/src/rc/clang.kak
@@ -17,11 +17,11 @@ def clang-complete %{
             pos=-:${kak_cursor_line}:${kak_cursor_column}
             cd $(dirname ${kak_bufname})
             output=$(clang++ -x c++ -fsyntax-only ${kak_opt_clang_options} -Xclang -code-completion-at=${pos} - < ${kak_opt_clang_filename} |
-                     grep -E "^COMPLETION:[^:]+:" | perl -pe 's/^COMPLETION:[^:]+: +//; s/\[#.*?#\]|<#.*?#>(, *|\))?|\{#.*?#\}\)?//g')
+                     grep -E "^COMPLETION:[^:]+:" | perl -pe 's/^COMPLETION:[^:]+: +//; s/:/\\:/g; s/\[#.*?#\]|<#.*?#>(, *|\))?|\{#.*?#\}\)?//g')
             rm -r $(dirname ${kak_opt_clang_filename})
-            completions="${kak_cursor_line}:${kak_cursor_column}@${kak_timestamp}"
+            completions="${kak_cursor_line}.${kak_cursor_column}@${kak_timestamp}"
             for cmp in ${output}; do
-                completions="${completions};${cmp}"
+                completions="${completions}:${cmp}"
             done
             echo "eval -client $kak_client %[ echo completed; setb completions '${completions}' ]" | socat -u stdin UNIX-CONNECT:${kak_socket}
         ) >& /dev/null < /dev/null &