diff --git a/libs/context/src/asm/jump_arm_aapcs_elf_gas.S b/src/Boost/libs/context/src/asm/jump_arm_aapcs_elf_gas.S
index d0f7fa2..58d11b0 100644
--- a/libs/context/src/asm/jump_arm_aapcs_elf_gas.S
+++ b/libs/context/src/asm/jump_arm_aapcs_elf_gas.S
@@ -42,6 +42,7 @@
 .globl jump_fcontext
 .align 2
 .type jump_fcontext,%function
+.syntax unified
 jump_fcontext:
     @ save LR as PC
     push {lr}
diff --git a/libs/context/src/asm/make_arm_aapcs_elf_gas.S b/src/Boost/libs/context/src/asm/make_arm_aapcs_elf_gas.S
index 98819a2..b88ff68 100644
--- a/libs/context/src/asm/make_arm_aapcs_elf_gas.S
+++ b/libs/context/src/asm/make_arm_aapcs_elf_gas.S
@@ -42,6 +42,7 @@
 .globl make_fcontext
 .align 2
 .type make_fcontext,%function
+.syntax unified
 make_fcontext:
     @ shift address in A1 to lower 16 byte boundary
     bic  a1, a1, #15
diff --git a/libs/context/src/asm/ontop_arm_aapcs_elf_gas.S b/src/Boost/libs/context/src/asm/ontop_arm_aapcs_elf_gas.S
index 9d9198f..2efebbb 100644
--- a/libs/context/src/asm/ontop_arm_aapcs_elf_gas.S
+++ b/libs/context/src/asm/ontop_arm_aapcs_elf_gas.S
@@ -42,6 +42,7 @@
 .globl ontop_fcontext
 .align 2
 .type ontop_fcontext,%function
+.syntax unified
 ontop_fcontext:
     @ save LR as PC
     push {lr}