diff --git a/browser/config/mozconfigs/win64/common-win64 b/browser/config/mozconfigs/win64/common-win64
index d076f89de955..1f8c9c321fb1 100644
--- a/browser/config/mozconfigs/win64/common-win64
+++ b/browser/config/mozconfigs/win64/common-win64
@@ -25,7 +25,7 @@ unset VC_PATH
 
 fi
 
-export pdbstr="${MOZ_FETCHES_DIR}/pdbstr/pdbstr.exe"
+pdbstr="${MOZ_FETCHES_DIR}/pdbstr/pdbstr.exe"
 if [ -f "${pdbstr}" ]; then
     chmod +x "${pdbstr}"
 fi