diff --git a/modules/custom/dumpsoftwareversions/templates/dumpsoftwareversions.py b/modules/custom/dumpsoftwareversions/templates/dumpsoftwareversions.py
index d1390392..7c2abfa4 100644
--- a/modules/custom/dumpsoftwareversions/templates/dumpsoftwareversions.py
+++ b/modules/custom/dumpsoftwareversions/templates/dumpsoftwareversions.py
@@ -58,11 +58,12 @@ versions_by_module = {}
 for process, process_versions in versions_by_process.items():
     module = process.split(":")[-1]
     try:
-        assert versions_by_module[module] == process_versions, (
-            "We assume that software versions are the same between all modules. "
-            "If you see this error-message it means you discovered an edge-case "
-            "and should open an issue in nf-core/tools. "
-        )
+        if versions_by_module[module] != process_versions:
+            raise AssertionError(
+                "We assume that software versions are the same between all modules. "
+                "If you see this error-message it means you discovered an edge-case "
+                "and should open an issue in nf-core/tools. "
+            )
     except KeyError:
         versions_by_module[module] = process_versions
 
diff --git a/tests/modules/custom/dumpsoftwareversions/main.nf b/tests/modules/custom/dumpsoftwareversions/main.nf
index b1761656..a9e532d2 100644
--- a/tests/modules/custom/dumpsoftwareversions/main.nf
+++ b/tests/modules/custom/dumpsoftwareversions/main.nf
@@ -42,7 +42,7 @@ workflow test_custom_dumpsoftwareversions {
     // cases where subworkflows have a module with the same name.
     fastqc1 ( input )
     fastqc2 ( input )
-    MULTIQC ( fastqc2.out.zip.collect { it[1] }, [[],[]] )
+    MULTIQC ( fastqc2.out.zip.collect { it[1] }, [], [], [] )
 
     fastqc1
         .out