Sample not found in BAM header

I get the following error when running mutech2, any idea what the reason is:

A USER ERROR has occurred: Bad input: Sample N-PANCNGS-006 is not in BAM header: []

gatk Mutect2 --native-pair-hmm-threads 30 -R  ~/genomes/BWA/Homo_sapiens.GRCh38.dna.primary_assembly.fa -I T-PANCNGS-006.bam -I N-PANCNGS-006.bam -normal N-PANCNGS-006 -O PANCNGS-006.vcf.gz

my bam header looks like this:

@SQ     SN:KI270394.1   LN:970
@PG     ID:bwa  PN:bwa  VN:0.7.17-r1188 CL:bwa mem -t 30   ~/genomes/BWA/Homo_sapiens.GRCh38.dna.primary_assembly N-PANCNGS-006_L001_R1_001.fastq.gz N-PANCNGS-006_L001_R2_001.fastq.gz