diff --git a/Makefile b/Makefile
index 8cb92e667d..e1f49347ac 100644
--- a/Makefile
+++ b/Makefile
@@ -382,6 +382,7 @@ COMMON_SRC = \
             common/filter.c \
             common/maths.c \
             common/printf.c \
+            common/streambuf.c \
             common/typeconversion.c \
             config/config.c \
             config/config_eeprom.c \