diff --git a/src/server/slavefuncs.h b/src/server/slavefuncs.h
--- a/src/server/slavefuncs.h
+++ b/src/server/slavefuncs.h
@@ -45,7 +45,7 @@ int conf_replace(char *conffile, char *w
 int exec_blender(char *input, char *output, int frame);
 void xmlinit();
 void xmlcleanup();
-int distren_mkdir_recurse(char *dirname);
+int distren_mkdir_recurse(const char *dirname);
 int job_build_path(char *filename, unsigned int jobnum);
 int downloadTar(char *url, char *destinationPath);
 int uploadOutput(char *pathtoOutput, char *urltoOutput, int jobnum, int framenum, int slavekey);