diff --git a/firmware/blinky/Makefile b/firmware/blinky/Makefile
index 6ad30dde..01ca290b 100644
--- a/firmware/blinky/Makefile
+++ b/firmware/blinky/Makefile
@@ -25,6 +25,7 @@ BINARY = blinky
 
 SRC = $(BINARY).c \
 	../common/hackrf_core.c \
+	../common/sgpio.c \
 	../common/si5351c.c \
 	../common/max2837.c
 
diff --git a/firmware/mixertx/Makefile b/firmware/mixertx/Makefile
index 0954b89b..3c2ffc00 100644
--- a/firmware/mixertx/Makefile
+++ b/firmware/mixertx/Makefile
@@ -4,6 +4,7 @@ BINARY = mixertx
 
 SRC = $(BINARY).c \
 	../common/hackrf_core.c \
+	../common/sgpio.c \
 	../common/si5351c.c \
 	../common/max2837.c \
 	../common/rffc5071.c
diff --git a/firmware/simpletx/Makefile b/firmware/simpletx/Makefile
index abe150b6..ad3e171b 100644
--- a/firmware/simpletx/Makefile
+++ b/firmware/simpletx/Makefile
@@ -4,6 +4,7 @@ BINARY = simpletx
 
 SRC = $(BINARY).c \
 	../common/hackrf_core.c \
+	../common/sgpio.c \
 	../common/si5351c.c \
 	../common/max2837.c
 
diff --git a/firmware/spiflash/Makefile b/firmware/spiflash/Makefile
index 3c219c62..a3a6763c 100644
--- a/firmware/spiflash/Makefile
+++ b/firmware/spiflash/Makefile
@@ -25,6 +25,7 @@ BINARY = spiflash
 
 SRC = $(BINARY).c \
 	../common/hackrf_core.c \
+	../common/sgpio.c \
 	../common/si5351c.c \
 	../common/max2837.c \
 	../common/w25q80bv.c
diff --git a/firmware/startup/Makefile b/firmware/startup/Makefile
index eb1502a9..ab4b43cc 100644
--- a/firmware/startup/Makefile
+++ b/firmware/startup/Makefile
@@ -4,6 +4,7 @@ BINARY = startup
 
 SRC = $(BINARY).c \
 	../common/hackrf_core.c \
+	../common/sgpio.c \
 	../common/si5351c.c \
 	../common/max2837.c
 
diff --git a/firmware/startup_systick/Makefile b/firmware/startup_systick/Makefile
index 22dbecac..9a8cd55a 100644
--- a/firmware/startup_systick/Makefile
+++ b/firmware/startup_systick/Makefile
@@ -4,6 +4,7 @@ BINARY = startup_systick
 
 SRC = $(BINARY).c \
 	../common/hackrf_core.c \
+	../common/sgpio.c \
 	../common/si5351c.c \
 	../common/max2837.c
 
diff --git a/firmware/startup_systick_perfo/Makefile b/firmware/startup_systick_perfo/Makefile
index 2a35de93..a1d0b116 100644
--- a/firmware/startup_systick_perfo/Makefile
+++ b/firmware/startup_systick_perfo/Makefile
@@ -5,6 +5,7 @@ BINARY = startup_systick_perfo_SPIFI
 SRC = startup_systick.c \
 	perf_mips.c \
 	../common/hackrf_core.c \
+	../common/sgpio.c \
 	../common/si5351c.c \
 	../common/max2837.c