diff --git a/modules/samtools/view/main.nf b/modules/samtools/view/main.nf
index 5f14fbbf..11cfb74b 100644
--- a/modules/samtools/view/main.nf
+++ b/modules/samtools/view/main.nf
@@ -8,7 +8,7 @@ process SAMTOOLS_VIEW {
         'quay.io/biocontainers/samtools:1.15.1--h1170115_0' }"
 
     input:
-    tuple val(meta), path(input)
+    tuple val(meta), path(input), path(index)
     path fasta
 
     output:
diff --git a/modules/samtools/view/meta.yml b/modules/samtools/view/meta.yml
index 5604bfa7..a8b43ecc 100644
--- a/modules/samtools/view/meta.yml
+++ b/modules/samtools/view/meta.yml
@@ -25,6 +25,10 @@ input:
       type: file
       description: BAM/CRAM/SAM file
       pattern: "*.{bam,cram,sam}"
+  - index:
+      type: optional file
+      description: BAM.BAI/CRAM.CRAI file
+      pattern: "*.{.bai,.crai}"
   - fasta:
       type: optional file
       description: Reference file the CRAM was created with
diff --git a/tests/modules/samtools/view/main.nf b/tests/modules/samtools/view/main.nf
index 8ee27ef8..9c239066 100644
--- a/tests/modules/samtools/view/main.nf
+++ b/tests/modules/samtools/view/main.nf
@@ -6,7 +6,8 @@ include { SAMTOOLS_VIEW } from '../../../../modules/samtools/view/main.nf'
 
 workflow test_samtools_view {
     input = [ [ id:'test', single_end:false ], // meta map
-                file(params.test_data['sarscov2']['illumina']['test_paired_end_bam'], checkIfExists: true)
+                file(params.test_data['sarscov2']['illumina']['test_paired_end_bam'], checkIfExists: true),
+                []
             ]
 
     SAMTOOLS_VIEW ( input, [] )
@@ -14,8 +15,8 @@ workflow test_samtools_view {
 
 workflow test_samtools_view_cram {
    input = [ [ id: 'test' ], // meta map
-               file(params.test_data['homo_sapiens']['illumina']['test_paired_end_recalibrated_sorted_cram'], checkIfExists: true),
-               file(params.test_data['homo_sapiens']['illumina']['test_paired_end_recalibrated_sorted_cram_crai'], checkIfExists: true)
+                file(params.test_data['homo_sapiens']['illumina']['test_paired_end_recalibrated_sorted_cram'], checkIfExists: true),
+                file(params.test_data['homo_sapiens']['illumina']['test_paired_end_recalibrated_sorted_cram_crai'], checkIfExists: true)
             ]
     fasta   = file(params.test_data['homo_sapiens']['genome']['genome_fasta'], checkIfExists: true)