diff --git a/build/toolchain.arm-gcc-m4f.mak b/build/toolchain.arm-gcc-m4f.mak
index 5f5ae4056..d1c90bbd4 100644
--- a/build/toolchain.arm-gcc-m4f.mak
+++ b/build/toolchain.arm-gcc-m4f.mak
@@ -1,3 +1,3 @@
 include build/toolchain.arm-gcc.mak
-SFLAGS += -mthumb -march=armv7e-m -mfloat-abi=hard
+SFLAGS += -mthumb -mfloat-abi=hard
 SFLAGS += -mcpu=cortex-m4 -mfpu=fpv4-sp-d16
diff --git a/build/toolchain.arm-gcc-m7f.mak b/build/toolchain.arm-gcc-m7f.mak
index b23b86b9d..8fd91a22d 100644
--- a/build/toolchain.arm-gcc-m7f.mak
+++ b/build/toolchain.arm-gcc-m7f.mak
@@ -1,3 +1,3 @@
 include build/toolchain.arm-gcc.mak
-SFLAGS += -mthumb -march=armv7e-m -mfloat-abi=hard
+SFLAGS += -mthumb -mfloat-abi=hard
 SFLAGS += -mcpu=cortex-m7 -mfpu=fpv5-sp-d16