diff --git a/Makefile b/Makefile
index ac8aad2..3536877 100644
--- a/Makefile
+++ b/Makefile
@@ -42,7 +42,7 @@ BIN = build/bin
 default: all test
 
 .PHONY: all
-all: dj false fop hru intcmp mm npc rpn scrut str strcmp swab true
+all: dj false fop hru intcmp mm npc peek rpn scrut str strcmp swab true
 
 # keep build/include until bindgen(1) has stdin support
 # https://github.com/rust-lang/rust-bindgen/issues/2703