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-rw-r--r--Src/params.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/Src/params.c b/Src/params.c
index fb79268da..993eaa097 100644
--- a/Src/params.c
+++ b/Src/params.c
@@ -3998,6 +3998,8 @@ addenv(Param pm, char *value)
       * the other branch?  If so, we don't actually need to
       * store pm->env at all, just a flag that the value was set.
       */
+     if (pm->env)
+         zsfree(pm->env);
      pm->env = newenv;
 #else
     /*