diff --git a/modules/vsearch/usearchglobal/main.nf b/modules/vsearch/usearchglobal/main.nf
index 88d945ea..c85546c1 100644
--- a/modules/vsearch/usearchglobal/main.nf
+++ b/modules/vsearch/usearchglobal/main.nf
@@ -46,7 +46,7 @@ process VSEARCH_USEARCHGLOBAL {
         default:
             outfmt = "--alnout";
             out_ext = 'aln';
-            log.warn("Unknown output file format provided (${outoption}): selectingpairwise alignments (alnout)");
+            log.warn("Unknown output file format provided (${outoption}): selecting pairwise alignments (alnout)");
             break
     }
     """