diff --git a/src/libnm-glib-aux/nm-shared-utils.c b/src/libnm-glib-aux/nm-shared-utils.c
index 1ca3e304ed..5f0e515a43 100644
--- a/src/libnm-glib-aux/nm-shared-utils.c
+++ b/src/libnm-glib-aux/nm-shared-utils.c
@@ -58,6 +58,17 @@ nm_ether_addr_from_string(NMEtherAddr *addr, const char *str)
     return addr;
 }
 
+guint
+nm_ether_addr_hash(const NMEtherAddr *a)
+{
+    NMHashState h;
+
+    nm_hash_init(&h, 1947951703u);
+    nm_hash_update(&h, a, sizeof(NMEtherAddr));
+
+    return nm_hash_complete(&h);
+}
+
 /*****************************************************************************/
 
 /**
diff --git a/src/libnm-glib-aux/nm-shared-utils.h b/src/libnm-glib-aux/nm-shared-utils.h
index ff855784ee..754c21aec9 100644
--- a/src/libnm-glib-aux/nm-shared-utils.h
+++ b/src/libnm-glib-aux/nm-shared-utils.h
@@ -241,6 +241,8 @@ nm_ether_addr_is_zero(const NMEtherAddr *a)
     return nm_memeq(a, &nm_ether_addr_zero, sizeof(NMEtherAddr));
 }
 
+guint nm_ether_addr_hash(const NMEtherAddr *a);
+
 /*****************************************************************************/
 
 struct ether_addr;