diff --git a/meta/lib/oe/qa.py b/meta/lib/oe/qa.py
index 12dcd1f..2c51141 100644
--- a/meta/lib/oe/qa.py
+++ b/meta/lib/oe/qa.py
@@ -99,7 +99,7 @@ class ELFFile:
         objdump = d.getVar('OBJDUMP', True)
         staging_dir = d.getVar('STAGING_BINDIR_TOOLCHAIN', True)
 
-        env = os.environ
+        env = os.environ.copy()
         env["LC_ALL"] = "C"
 
         try: