diff --git a/src/mesh/mesh-pb-constants.h b/src/mesh/mesh-pb-constants.h
index f91c48560..539fecb3f 100644
--- a/src/mesh/mesh-pb-constants.h
+++ b/src/mesh/mesh-pb-constants.h
@@ -20,8 +20,12 @@
 
 /// max number of nodes allowed in the mesh
 #ifndef MAX_NUM_NODES
+#ifdef ARCH_NRF52
+#define MAX_NUM_NODES 80
+#else
 #define MAX_NUM_NODES 100
 #endif
+#endif
 
 /// Max number of channels allowed
 #define MAX_NUM_CHANNELS (member_size(meshtastic_ChannelFile, channels) / member_size(meshtastic_ChannelFile, channels[0]))