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-rw-r--r--lib/bundler/gem_version_promoter.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/bundler/gem_version_promoter.rb b/lib/bundler/gem_version_promoter.rb
index 311b0cbbf3..76912940ac 100644
--- a/lib/bundler/gem_version_promoter.rb
+++ b/lib/bundler/gem_version_promoter.rb
@@ -7,7 +7,7 @@ module Bundler
# available dependency versions as found in its index, before returning it to
# to the resolution engine to select the best version.
class GemVersionPromoter
- DEBUG = ENV["DEBUG_RESOLVER"]
+ DEBUG = ENV["BUNDLER_DEBUG_RESOLVER"] || ENV["DEBUG_RESOLVER"]
attr_reader :level, :locked_specs, :unlock_gems