diff --git a/soc/runtime/Makefile b/soc/runtime/Makefile
index d63fa65f2..16461ca4a 100644
--- a/soc/runtime/Makefile
+++ b/soc/runtime/Makefile
@@ -20,7 +20,7 @@ $(error failed to determine UP/AMP build)
 endif
 endif
 
-all: runtime.bin
+all: runtime.fbi
 
 # pull in dependency info for *existing* .o files
 -include $(OBJECTS:.o=.d)