1 files changed, 3 insertions, 5 deletions
diff --git a/preproc.c b/preproc.c
index 09ef32b6..570f9d11 100644
--- a/preproc.c
+++ b/preproc.c
@@ -1182,12 +1182,10 @@ static char *detoken(Token * tlist, bool expand_locals)
         if (t->type == TOK_PREPROC_ID && t->text[1] == '!') {
             char *p = getenv(t->text + 2);
             char *q = t->text;
-            if (p) {
+            if (p)
                 t->text = nasm_strdup(p);
-            } else {
-                t->text = nasm_strdup("");
-                error(ERR_WARNING | ERR_PASS1, "`%s' is empty", q + 2);
-            }
+            else
+                error(ERR_FATAL, "`%s' is empty", q + 2);
             nasm_free(q);
         }
         /* Expand local macros here and not during preprocessing */