diff --git a/CHANGES b/CHANGES
index bc94fddaef..a5b23556c8 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+4621.	[port]		Force alignment of oid arrays to silence loader
+			warnings. [RT #45131]
+
 4620.	[port]		Handle EPFNOSUPPORT being returned when probing
 			to see if a socket type is supported. [RT #45214]
 
diff --git a/lib/dns/spnego.c b/lib/dns/spnego.c
index 23f8f7cfd5..f2e115fdab 100644
--- a/lib/dns/spnego.c
+++ b/lib/dns/spnego.c
@@ -311,35 +311,39 @@ fix_dce(size_t reallen, size_t * len);
 
 #include "spnego_asn1.c"
 
-static unsigned char gss_krb5_mech_oid_bytes[] = {
-	0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x01, 0x02, 0x02
+/*
+ * Force the oid arrays to be isc_uint64_t aligned to silence warnings
+ * about the arrays not being properly aligned for (void *).
+ */
+typedef union { unsigned char b[8]; isc_uint64_t _align; } aligned8;
+typedef union { unsigned char b[16]; isc_uint64_t _align[2]; } aligned16;
+
+static aligned16 gss_krb5_mech_oid_bytes = {
+	{ 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x01, 0x02, 0x02 }
 };
 
 static gss_OID_desc gss_krb5_mech_oid_desc = {
-	sizeof(gss_krb5_mech_oid_bytes),
-	gss_krb5_mech_oid_bytes
+	9, gss_krb5_mech_oid_bytes.b
 };
 
 static gss_OID GSS_KRB5_MECH = &gss_krb5_mech_oid_desc;
 
-static unsigned char gss_mskrb5_mech_oid_bytes[] = {
-	0x2a, 0x86, 0x48, 0x82, 0xf7, 0x12, 0x01, 0x02, 0x02
+static aligned16 gss_mskrb5_mech_oid_bytes = {
+	{ 0x2a, 0x86, 0x48, 0x82, 0xf7, 0x12, 0x01, 0x02, 0x02 }
 };
 
 static gss_OID_desc gss_mskrb5_mech_oid_desc = {
-	sizeof(gss_mskrb5_mech_oid_bytes),
-	gss_mskrb5_mech_oid_bytes
+	9, gss_mskrb5_mech_oid_bytes.b
 };
 
 static gss_OID GSS_MSKRB5_MECH = &gss_mskrb5_mech_oid_desc;
 
-static unsigned char gss_spnego_mech_oid_bytes[] = {
-	0x2b, 0x06, 0x01, 0x05, 0x05, 0x02
+static aligned8 gss_spnego_mech_oid_bytes = {
+	{ 0x2b, 0x06, 0x01, 0x05, 0x05, 0x02 }
 };
 
 static gss_OID_desc gss_spnego_mech_oid_desc = {
-	sizeof(gss_spnego_mech_oid_bytes),
-	gss_spnego_mech_oid_bytes
+	6, gss_spnego_mech_oid_bytes.b
 };
 
 static gss_OID GSS_SPNEGO_MECH = &gss_spnego_mech_oid_desc;