diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8614fd74e..b4c728e20 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,7 @@ Special thanks to the following for their contributions to the release:
 - [PR #1144](https://github.com/nf-core/rnaseq/pull/1144) - Interface to kmer size for pseudoaligners
 - [PR #1149](https://github.com/nf-core/rnaseq/pull/1149) - Fix and patch version commands for Fastp, FastQC and UMI-tools modules ([#1103](https://github.com/nf-core/rnaseq/issues/1103))
 - [PR #1150](https://github.com/nf-core/rnaseq/pull/1150) - Be more flexible on attribute values in GTFs ([#1132](https://github.com/nf-core/rnaseq/issues/1132))
+- [PR #1151](https://github.com/nf-core/rnaseq/pull/1151) - fix to #1150: reinstate conditional
 
 ### Parameters
 
diff --git a/bin/tx2gene.py b/bin/tx2gene.py
index 963676ef1..d8256f5f9 100755
--- a/bin/tx2gene.py
+++ b/bin/tx2gene.py
@@ -62,7 +62,7 @@ def discover_transcript_attribute(gtf_file: str, transcripts: Set[str]) -> str:
             attributes_str = cols[8]
             attributes = dict(re.findall(r'(\S+) "(.*?)(?<!\\)";', attributes_str))
 
-            votes.update(key for key, value in attributes.items())
+            votes.update(key for key, value in attributes.items() if value in transcripts)
 
     if not votes:
         # Log a warning if no matching attribute is found