diff --git a/include/Domito.h b/include/Domito.h
index fe0f09d..3d30df2 100644
--- a/include/Domito.h
+++ b/include/Domito.h
@@ -237,8 +237,8 @@ _IRQL_requires_max_(PASSIVE_LEVEL)
 NTSTATUS
 DomitoCiValidateFileObject(
     _In_ FILE_OBJECT* FileObject,
-    _In_opt_ UINT32 Unkonwn1,
-    _In_opt_ UINT32 Unkonwn2,
+    _In_opt_ UINT32 Unknown1,
+    _In_opt_ UINT32 Unknown2,
     _Out_ MINCRYPT_POLICY_INFO* PolicyInfo,
     _Out_ MINCRYPT_POLICY_INFO* TimeStampPolicyInfo,
     _Out_ LARGE_INTEGER* SigningTime,
diff --git a/src/Domito.Internal.h b/src/Domito.Internal.h
index 9df8dd0..867ece9 100644
--- a/src/Domito.Internal.h
+++ b/src/Domito.Internal.h
@@ -280,9 +280,9 @@ t_CiSetTrustedOriginClaimId)(
 *
 *  @param  FileObject - FileObject of the PE in question
 *
-*  @param  Unkonwn1 - unknown, 0 is a valid value. (Unkonwn1 and Unkonwn2 together calculate the minimum support algorithm)
+*  @param  Unknown1 - unknown, 0 is a valid value. (Unknown1 and Unknown2 together calculate the minimum support algorithm)
 *
-*  @param  Unkonwn2 - unknown, 0 is a valid value. (^ the words above refer to 'CipGetHashAlgorithmForLegacyScenario')
+*  @param  Unknown2 - unknown, 0 is a valid value. (^ the words above refer to 'CipGetHashAlgorithmForLegacyScenario')
 *
 *  @param  PolicyInfo[out] - PolicyInfo containing information about the signer certificate chain.
 *
@@ -308,8 +308,8 @@ NTSTATUS
 (NTAPI*
 t_CiValidateFileObject)(
     _In_ FILE_OBJECT* FileObject,
-    _In_opt_ UINT32 Unkonwn1,
-    _In_opt_ UINT32 Unkonwn2,
+    _In_opt_ UINT32 Unknown1,
+    _In_opt_ UINT32 Unknown2,
     _Out_ MINCRYPT_POLICY_INFO* PolicyInfo,
     _Out_ MINCRYPT_POLICY_INFO* TimeStampPolicyInfo,
     _Out_ LARGE_INTEGER* SigningTime,