diff --git a/firmware/Makefile b/firmware/Makefile
index 51ef445..f119f7f 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -159,7 +159,7 @@ CPPWARN = -Wall -Wextra -Wundef
 #
 
 # List all user C define here, like -D_DEBUG=1
-UDEFS = -DCHPRINTF_USE_FLOAT=1
+#UDEFS = -DCHPRINTF_USE_FLOAT=1
 
 
 # Define ASM defines here