diff --git a/src/stacktrace.cxx b/src/stacktrace.cxx
index 955e017..101c98b 100644
--- a/src/stacktrace.cxx
+++ b/src/stacktrace.cxx
@@ -323,11 +323,11 @@ mrw::StackTrace::BinFiles mrw::StackTrace::filename()
     prpsinfo_t status;
     if (fd==-1 || ioctl(fd, PIOCPSINFO, &status)==-1) return res;
     s = status.pr_psargs;
-    return res<<BinFiles::value_type(s.substr(0, s.find(' ')), 0);
+    return res<<BinFiles::value_type(s.substr(0, s.find(' ')), (void*)0);
   }
 # elif defined(__linux__)
   {
-    res<<BinFiles::value_type("/proc/self/exe", 0);
+    res<<BinFiles::value_type("/proc/self/exe", (void*)0);
     std::ifstream is("/proc/self/maps");
     std::string s;
     std::string range, perm, x1, x2, size, lib;