diff --git a/CHANGELOG.md b/CHANGELOG.md
index 143f669e96..423ce2b389 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ Changes
 
 * [#3116](https://github.com/RaRe-Technologies/gensim/pull/3116): Fix bug where saved Phrases model did not load its connector_words, by [@aloknayak29](https://github.com/aloknayak29)
 * [#3136](https://github.com/RaRe-Technologies/gensim/pull/3136): fix indexing error in word2vec_inner.pyx, by [@bluekura](https://github.com/bluekura)
+* [#3174](https://github.com/RaRe-Technologies/gensim/pull/3174): Fix a bug when upgrading phraser from gensim 3.x to 4.0, by [@emgucv](https://github.com/emgucv)
 
 ### :+1: Improvements
 
diff --git a/gensim/models/phrases.py b/gensim/models/phrases.py
index d07b75adc6..c95682fa5e 100644
--- a/gensim/models/phrases.py
+++ b/gensim/models/phrases.py
@@ -364,7 +364,7 @@ def load(cls, *args, **kwargs):
                 }
             elif isinstance(component, tuple):  # 3.8 => 4.0: phrasegram keys are strings, not tuples with bytestrings
                 model.phrasegrams = {
-                    str(model.delimiter.join(component), encoding='utf8'): score
+                    str(model.delimiter.join(key), encoding='utf8'): val
                     for key, val in phrasegrams.items()
                 }
         except StopIteration: