1 files changed, 2 insertions, 0 deletions
diff --git a/src/H5system.c b/src/H5system.c
index a93a128..e46964f 100644
--- a/src/H5system.c
+++ b/src/H5system.c
@@ -155,6 +155,8 @@ HDfprintf(FILE *stream, const char *fmt, ...)
                     case '#':
                         prefix = 1;
                         break;
+                    default:
+                        HDassert(0 && "This Should never be executed!");
                 } /* end switch */ /*lint !e744 Switch statement doesn't _need_ default */
                 s++;
             } /* end while */