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-rw-r--r--posix/wordexp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/posix/wordexp.c b/posix/wordexp.c
index f470e083ef..f6062d58c8 100644
--- a/posix/wordexp.c
+++ b/posix/wordexp.c
@@ -1915,7 +1915,7 @@ envsubst:
 	  if (pattern && !value)
 	    goto no_space;
 
-	  __setenv (env, value, 1);
+	  __setenv (env, value ?: "", 1);
 	  break;
 
 	default: