diff --git a/src/common/log.c b/src/common/log.c
index 10398305c6..2feb075c02 100644
--- a/src/common/log.c
+++ b/src/common/log.c
@@ -93,6 +93,7 @@ logv(int severity, const char *funcname, const char *format, va_list ap)
       formatted = 1;
     }
     fputs(buf, lf->file);
+    fflush(lf->file);
     /* XXX check for EOF */
   }
 }