diff --git a/snakemake/process_data/Snakefile b/snakemake/process_data/Snakefile
index 5e714a14e51a045764c1995a2a291ffdda763242..ba16c6267cc939f8ca8b8eb5d29bab96785d9814 100644
--- a/snakemake/process_data/Snakefile
+++ b/snakemake/process_data/Snakefile
@@ -244,7 +244,7 @@ rule read_length_histogram:
 	shell:
 		"(python scripts/plot_read_lengths.py \
 		--sam {input.sam} \
-		--outdir {params.dir}) & > {log}"
+		--outdir {params.dir}) &> {log}"
 
 ################################################################################
 ### Count reads