--- a/src/pcrewrap.cc	2014-05-04 12:15:17.000000000 +0300
+++ b/src/pcrewrap.cc	2018-04-23 20:13:13.900797729 +0300
@@ -74,7 +74,7 @@
 namespace pcre
 {
   typedef map<char const *,
-              pair<struct real_pcre const *, struct pcre_extra const *> >
+              pair<struct real_pcre8_or_16 const *, struct pcre_extra const *> >
               regex_cache;
 
   class regex_cache_manager
@@ -86,7 +86,7 @@
       }
 
     void store(char const * pattern,
-               pair<struct real_pcre const *, struct pcre_extra const *>
+               pair<struct real_pcre8_or_16 const *, struct pcre_extra const *>
                data)
       {
         cache[pattern] = data;
--- a/src/pcrewrap.hh	2014-05-04 12:15:17.000000000 +0300
+++ b/src/pcrewrap.hh	2018-04-23 20:13:15.174151327 +0300
@@ -18,7 +18,7 @@
 // definitions and so we don't actually expose it here. Unfortunately, this
 // means we have to hope this pair of forward declarations will not change...
 
-struct real_pcre;
+struct real_pcre8_or_16;
 struct pcre_extra;
 
 namespace pcre
@@ -61,7 +61,7 @@
     regex & operator=(regex const &);
 
     // data
-    struct real_pcre const * basedat;
+    struct real_pcre8_or_16 const * basedat;
     struct pcre_extra const * extradat;
 
     // used by constructors