diff --git a/platforms/ez430-rf2560/btstack-config.h b/platforms/ez430-rf2560/btstack-config.h
index dedd58403..ad50bebe0 100644
--- a/platforms/ez430-rf2560/btstack-config.h
+++ b/platforms/ez430-rf2560/btstack-config.h
@@ -34,6 +34,7 @@
 #define MAX_NO_DB_MEM_DEVICE_LINK_KEYS  2
 #define MAX_NO_DB_MEM_DEVICE_NAMES 0
 #define MAX_NO_DB_MEM_SERVICES 1
+#define MAX_NO_HFP_CONNECTIONS 0
 
 #endif
 
diff --git a/platforms/pic32-harmony/src/btstack-config.h b/platforms/pic32-harmony/src/btstack-config.h
index ff020ab98..92859c809 100644
--- a/platforms/pic32-harmony/src/btstack-config.h
+++ b/platforms/pic32-harmony/src/btstack-config.h
@@ -31,5 +31,6 @@
 #define MAX_NO_DB_MEM_SERVICES 1
 #define MAX_NO_BNEP_SERVICES 0
 #define MAX_NO_BNEP_CHANNELS 0
+#define MAX_NO_HFP_CONNECTIONS 0
 
 #endif
\ No newline at end of file
diff --git a/platforms/stm32-f103rb-nucleo/btstack-config.h b/platforms/stm32-f103rb-nucleo/btstack-config.h
index 8fd6db432..d41f30259 100644
--- a/platforms/stm32-f103rb-nucleo/btstack-config.h
+++ b/platforms/stm32-f103rb-nucleo/btstack-config.h
@@ -31,5 +31,6 @@
 #define MAX_NO_DB_MEM_SERVICES 1
 #define MAX_NO_BNEP_SERVICES 0
 #define MAX_NO_BNEP_CHANNELS 0
+#define MAX_NO_HFP_CONNECTIONS 0
 
 #endif
\ No newline at end of file