diff --git a/samples/geotag.cpp b/samples/geotag.cpp
index dd471f36..af581451 100644
--- a/samples/geotag.cpp
+++ b/samples/geotag.cpp
@@ -808,7 +808,7 @@ int main(int argc,const char* argv[])
                 if ( type == typeImage ) {
                     time_t t    = readImageTime(std::string(arg)) ;
                     char   buffer[1024];
-                    char*  path = realpath(arg,NULL);
+                    char*  path = realpath(arg,buffer);
                     if  ( t && path ) {
                         if ( options.verbose) printf("%s %ld %s",path,(long int)t,asctime(localtime(&t)));
                         gFiles.push_back(path);