diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf.ld b/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf.ld
index 8843b69dde..fe873acf1c 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf.ld
+++ b/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf.ld
@@ -105,8 +105,8 @@ SECTIONS
         . = ALIGN(4);
         __ram3_init_text__ = LOADADDR(.fastramfunc);
         __ram3_init__ = .;
-        /* ChibiOS won't boot unless these are excluded */
-        EXCLUDE_FILE (*vectors.o *crt0_v7m.o *crt1.o *board.o)
+        /* ChibiOS won't boot unless some of these are excluded */
+        EXCLUDE_FILE (*vectors.o *crt0_v7m.o *crt1.o *board.o *chprintf.o)
         /* performance critical sections of ChibiOS */
         *libch.a:ch*.*(.text*)
         *libch.a:nvic.*(.text*)
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf_h730.ld b/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf_h730.ld
index d46fadcf7c..a0d7451d19 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf_h730.ld
+++ b/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf_h730.ld
@@ -106,8 +106,8 @@ SECTIONS
         __ram3_init_text__ = LOADADDR(.fastramfunc);
         __ram3_init__ = .;
         /* performance critical sections of ChibiOS */
-        /* ChibiOS won't boot unless these are excluded */
-        EXCLUDE_FILE (*vectors.o *crt0_v7m.o *crt1.o) *libch.a:ch*.*(.text*)
+        /* ChibiOS won't boot unless some of these are excluded */
+        EXCLUDE_FILE (*vectors.o *crt0_v7m.o *crt1.o  *chprintf.o) *libch.a:ch*.*(.text*)
         *libch.a:nvic.*(.text*)
         *libch.a:bouncebuffer.*(.text*)
         *libch.a:stm32_util.*(.text*)
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf_h750.ld b/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf_h750.ld
index ab1f170f43..ebe47db4a8 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf_h750.ld
+++ b/libraries/AP_HAL_ChibiOS/hwdef/common/common_extf_h750.ld
@@ -106,8 +106,8 @@ SECTIONS
         __ram3_init_text__ = LOADADDR(.fastramfunc);
         __ram3_init__ = .;
         /* performance critical sections of ChibiOS */
-        /* ChibiOS won't boot unless these are excluded */
-        EXCLUDE_FILE (*vectors.o *crt0_v7m.o *crt1.o) *libch.a:ch*.*(.text*)
+        /* ChibiOS won't boot unless some of these are excluded */
+        EXCLUDE_FILE (*vectors.o *crt0_v7m.o *crt1.o  *chprintf.o) *libch.a:ch*.*(.text*)
         *libch.a:nvic.*(.text*)
         *libch.a:bouncebuffer.*(.text*)
         *libch.a:stm32_util.*(.text*)