diff --git a/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_STATIC/main.c b/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_STATIC/main.c
index cf1ed27bc..587d6a5ee 100644
--- a/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_STATIC/main.c
+++ b/demos/STM32/RT-STM32G474RE-NUCLEO64-SB_HOST_STATIC/main.c
@@ -290,7 +290,7 @@ int main(void) {
   /* Starting sandboxed thread 2.*/
   utp2 = sbStartThread(&sbx2, "sbx2",
                        waUnprivileged2, sizeof (waUnprivileged2),
-                       NORMALPRIO - 1, sbx2_argv, sbx2_envp);
+                       NORMALPRIO - 2, sbx2_argv, sbx2_envp);
   if (utp1 == NULL) {
     chSysHalt("sbx2 failed");
   }
diff --git a/demos/various/SB-CLIENT-128k-08040000-16k-20018000/Makefile b/demos/various/SB-CLIENT-128k-08040000-16k-20018000/Makefile
index 3aa73b5d0..9d28f38fa 100644
--- a/demos/various/SB-CLIENT-128k-08040000-16k-20018000/Makefile
+++ b/demos/various/SB-CLIENT-128k-08040000-16k-20018000/Makefile
@@ -5,7 +5,7 @@
 
 # Compiler options here.
 ifeq ($(USE_OPT),)
-  USE_OPT = -O2 -ggdb -fomit-frame-pointer --specs=nano.specs
+  USE_OPT = -O2 -ggdb -fomit-frame-pointer -falign-functions=16 --specs=nano.specs
 endif
 
 # C specific options here (added to USE_OPT).
diff --git a/demos/various/SB-CLIENT-128k-08060000-16k-2001C000/Makefile b/demos/various/SB-CLIENT-128k-08060000-16k-2001C000/Makefile
index 61e04c968..30cb0400f 100644
--- a/demos/various/SB-CLIENT-128k-08060000-16k-2001C000/Makefile
+++ b/demos/various/SB-CLIENT-128k-08060000-16k-2001C000/Makefile
@@ -5,7 +5,7 @@
 
 # Compiler options here.
 ifeq ($(USE_OPT),)
-  USE_OPT = -O2 -ggdb -fomit-frame-pointer --specs=nano.specs
+  USE_OPT = -O2 -ggdb -fomit-frame-pointer -falign-functions=16 --specs=nano.specs
 endif
 
 # C specific options here (added to USE_OPT).