diff --git a/src/shared/tpm2-util.h b/src/shared/tpm2-util.h
index f074a41fad..048c28d6ca 100644
--- a/src/shared/tpm2-util.h
+++ b/src/shared/tpm2-util.h
@@ -125,7 +125,7 @@ static inline bool TPM2_PCR_MASK_VALID(uint64_t pcr_mask) {
 const char *tpm2_pcr_bank_to_string(uint16_t bank);
 int tpm2_pcr_bank_from_string(const char *bank);
 
-const char *tpm2_primary_alg_to_string(uint16_t bank);
+const char *tpm2_primary_alg_to_string(uint16_t alg);
 int tpm2_primary_alg_from_string(const char *alg);
 
 typedef struct {