diff --git a/src/log.c b/src/log.c
index ee405fd..6528c1e 100644
--- a/src/log.c
+++ b/src/log.c
@@ -153,7 +153,7 @@ log_message (int level, const char *fmt, ...)
 
       vsnprintf (str, STRING_LENGTH, fmt, args);
 
-      entry_buffer = safemalloc (strlen (str) + 6);
+      entry_buffer = (char *)safemalloc (strlen (str) + 6);
       if (!entry_buffer)
         goto out;