diff --git a/sw/ext/Makefile b/sw/ext/Makefile
index aa8803beff..c5d25bd675 100644
--- a/sw/ext/Makefile
+++ b/sw/ext/Makefile
@@ -40,7 +40,7 @@ ifeq ($(strip $(HAVE_ARM_NONE_EABI_GCC)),)
 	TOOLCHAIN=$(shell find -L /opt/paparazzi/arm-multilib -maxdepth 1 -type d -name arm-none-eabi 2>/dev/null | head -n 1)
 	ifneq ($(TOOLCHAIN),)
 		TOOLCHAIN_DIR=$(shell dirname $(TOOLCHAIN))
-		PREFIX = $(TOOLCHAIN_DIR)/bin/arm-none-eabi-
+		PREFIX = $(TOOLCHAIN_DIR)/bin/arm-none-eabi
 	endif
 endif
 
diff --git a/sw/ext/luftboot b/sw/ext/luftboot
index abec4acf5a..75c3107284 160000
--- a/sw/ext/luftboot
+++ b/sw/ext/luftboot
@@ -1 +1 @@
-Subproject commit abec4acf5aa58646cb859d886579194391658c02
+Subproject commit 75c3107284e6f02b27b21c2ae269824df58bb1ec