diff --git a/modules/nf-core/doubletdetection/main.nf b/modules/nf-core/doubletdetection/main.nf
index 71561082f36..f896fef5896 100644
--- a/modules/nf-core/doubletdetection/main.nf
+++ b/modules/nf-core/doubletdetection/main.nf
@@ -7,7 +7,7 @@ process DOUBLETDETECTION {
         'community.wave.seqera.io/library/anndata_louvain_pip_doubletdetection:cbe92394c10372fa' }"
 
     // Prevent /tmp mount for singularity and set the MATPLOTLIB TMPDIR
-     containerOptions "${workflow.containerEngine == 'singularity' ? '--no-mount tmp --env MPLCONFIGDIR=' + workDir : ''}"
+    containerOptions "${workflow.containerEngine == 'singularity' ? '--no-mount tmp --env MPLCONFIGDIR=' + workDir : ''}"
 
     input:
     tuple val(meta), path(h5ad)