diff --git a/sysmodules/loader/Makefile b/sysmodules/loader/Makefile
index 7b88dba..c8eb15d 100755
--- a/sysmodules/loader/Makefile
+++ b/sysmodules/loader/Makefile
@@ -26,7 +26,7 @@ INCLUDES	:=	include
 # options for code generation
 #---------------------------------------------------------------------------------
 ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
-DEFINES :=	-DARM11 -D_3DS
+DEFINES :=	-D__3DS__
 
 COMMON_FLAGS = -g -Wall -Wextra -Werror -O2 -mword-relocations \
 			-fomit-frame-pointer -ffunction-sections -fdata-sections \
diff --git a/sysmodules/pm/Makefile b/sysmodules/pm/Makefile
index fa49ced..a750339 100644
--- a/sysmodules/pm/Makefile
+++ b/sysmodules/pm/Makefile
@@ -26,7 +26,7 @@ INCLUDES	:=	include
 # options for code generation
 #---------------------------------------------------------------------------------
 ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
-DEFINES :=	-DARM11 -D_3DS
+DEFINES :=	-D__3DS__
 
 CFLAGS	:=	-g -std=gnu11 -Wall -Wextra -Werror -Os -mword-relocations \
 			-fomit-frame-pointer -ffunction-sections -fdata-sections \
diff --git a/sysmodules/pxi/Makefile b/sysmodules/pxi/Makefile
index b729039..1cc0b23 100644
--- a/sysmodules/pxi/Makefile
+++ b/sysmodules/pxi/Makefile
@@ -26,7 +26,7 @@ INCLUDES	:=	include
 # options for code generation
 #---------------------------------------------------------------------------------
 ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
-DEFINES :=	-DARM11 -D_3DS
+DEFINES :=	-D__3DS__
 
 CFLAGS	:=	-g -std=gnu11 -Wall -Wextra -Werror -O2 -mword-relocations \
 			-fomit-frame-pointer -ffunction-sections -fdata-sections \
diff --git a/sysmodules/rosalina/Makefile b/sysmodules/rosalina/Makefile
index d840c15..b152056 100644
--- a/sysmodules/rosalina/Makefile
+++ b/sysmodules/rosalina/Makefile
@@ -26,7 +26,7 @@ INCLUDES	:=	include include/gdb include/menus include/redshift
 # options for code generation
 #---------------------------------------------------------------------------------
 ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
-DEFINES :=	-DARM11 -D_3DS
+DEFINES :=	-D__3DS__
 
 FALSEPOSITIVES := -Wno-array-bounds -Wno-stringop-overflow -Wno-stringop-overread
 CFLAGS	:=	-g -std=gnu11 -Wall -Wextra -Werror -Wno-unused-value -Os -mword-relocations \
diff --git a/sysmodules/sm/Makefile b/sysmodules/sm/Makefile
index fa49ced..a750339 100644
--- a/sysmodules/sm/Makefile
+++ b/sysmodules/sm/Makefile
@@ -26,7 +26,7 @@ INCLUDES	:=	include
 # options for code generation
 #---------------------------------------------------------------------------------
 ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
-DEFINES :=	-DARM11 -D_3DS
+DEFINES :=	-D__3DS__
 
 CFLAGS	:=	-g -std=gnu11 -Wall -Wextra -Werror -Os -mword-relocations \
 			-fomit-frame-pointer -ffunction-sections -fdata-sections \