diff --git a/boards/arm/stm32/stm32f4discovery/scripts/Make.defs b/boards/arm/stm32/stm32f4discovery/scripts/Make.defs
index 21cbd967ce1..59aa60bf6b4 100644
--- a/boards/arm/stm32/stm32f4discovery/scripts/Make.defs
+++ b/boards/arm/stm32/stm32f4discovery/scripts/Make.defs
@@ -45,8 +45,8 @@ ARCHWARNINGSXX = -Wall -Wshadow -Wundef
 ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
 
 ifeq ($(CONFIG_ARMV7M_TOOLCHAIN_CLANGL),y)
-  ARCHCFLAGS += -nostdlib -ffreestanding -target arm-none-eabi -march=armv7-m -mcpu=cortex-m4
-  ARCHCXXFLAGS += -nostdlib -ffreestanding -target arm-none-eabi -march=armv7-m -mcpu=cortex-m4 -DCONFIG_WCHAR_BUILTIN
+  ARCHCFLAGS += -nostdlib -ffreestanding
+  ARCHCXXFLAGS += -nostdlib -ffreestanding -DCONFIG_WCHAR_BUILTIN
 else
   ARCHCFLAGS += -funwind-tables
   ARCHCXXFLAGS += -fno-rtti -funwind-tables
diff --git a/boards/arm/stm32f7/stm32f746g-disco/scripts/Make.defs b/boards/arm/stm32f7/stm32f746g-disco/scripts/Make.defs
index c687a90abf5..2639e5bf164 100644
--- a/boards/arm/stm32f7/stm32f746g-disco/scripts/Make.defs
+++ b/boards/arm/stm32f7/stm32f746g-disco/scripts/Make.defs
@@ -53,8 +53,8 @@ ARCHCFLAGS = -fno-builtin
 ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
 
 ifeq ($(CONFIG_ARMV7M_TOOLCHAIN_CLANGL),y)
-  ARCHCFLAGS += -nostdlib -ffreestanding -target arm-none-eabi -march=armv7-m -mcpu=cortex-m7
-  ARCHCXXFLAGS += -nostdlib -ffreestanding -target arm-none-eabi -march=armv7-m -mcpu=cortex-m7 -DCONFIG_WCHAR_BUILTIN
+  ARCHCFLAGS += -nostdlib -ffreestanding
+  ARCHCXXFLAGS += -nostdlib -ffreestanding -DCONFIG_WCHAR_BUILTIN
 else
   ARCHCXXFLAGS += -fno-rtti
   ifneq ($(CONFIG_DEBUG_NOOPT),y)