diff --git a/lib/efm32/efm32g/Makefile b/lib/efm32/efm32g/Makefile
index 923be478..c3687941 100644
--- a/lib/efm32/efm32g/Makefile
+++ b/lib/efm32/efm32g/Makefile
@@ -30,7 +30,7 @@ CFLAGS		= -Os -g -Wall -Wextra -I../../../include -fno-common \
 		  -ffunction-sections -fdata-sections -MD -D$(FAMILY)
 # ARFLAGS	= rcsv
 ARFLAGS		= rcs
-OBJS		= vector.o
+OBJS		= vector.o systick.o scb.o nvic.o assert.o
 
 VPATH += ../:../../cm3
 
diff --git a/lib/efm32/efm32gg/Makefile b/lib/efm32/efm32gg/Makefile
index 0d9d0bdc..27e2235e 100644
--- a/lib/efm32/efm32gg/Makefile
+++ b/lib/efm32/efm32gg/Makefile
@@ -30,7 +30,7 @@ CFLAGS		= -Os -g -Wall -Wextra -I../../../include -fno-common \
 		  -ffunction-sections -fdata-sections -MD -D$(FAMILY)
 # ARFLAGS	= rcsv
 ARFLAGS		= rcs
-OBJS		= vector.o
+OBJS		= vector.o systick.o scb.o nvic.o assert.o
 
 VPATH += ../:../../cm3
 
diff --git a/lib/efm32/efm32lg/Makefile b/lib/efm32/efm32lg/Makefile
index c76323e7..73dd6f64 100644
--- a/lib/efm32/efm32lg/Makefile
+++ b/lib/efm32/efm32lg/Makefile
@@ -30,7 +30,7 @@ CFLAGS		= -Os -g -Wall -Wextra -I../../../include -fno-common \
 		  -ffunction-sections -fdata-sections -MD -D$(FAMILY)
 # ARFLAGS	= rcsv
 ARFLAGS		= rcs
-OBJS		= vector.o
+OBJS		= vector.o systick.o scb.o nvic.o assert.o
 
 VPATH += ../:../../cm3
 
diff --git a/lib/efm32/efm32tg/Makefile b/lib/efm32/efm32tg/Makefile
index 65f8d025..a065b6d5 100644
--- a/lib/efm32/efm32tg/Makefile
+++ b/lib/efm32/efm32tg/Makefile
@@ -30,7 +30,7 @@ CFLAGS		= -Os -g -Wall -Wextra -I../../../include -fno-common \
 		  -ffunction-sections -fdata-sections -MD -D$(FAMILY)
 # ARFLAGS	= rcsv
 ARFLAGS		= rcs
-OBJS		= vector.o
+OBJS		= vector.o systick.o scb.o nvic.o assert.o
 
 VPATH += ../:../../cm3