diff --git a/rust/Makefile b/rust/Makefile
index b361bfedfdf0..b9e9f512cec3 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -403,6 +403,8 @@ BINDGEN_TARGET_x86	:= x86_64-linux-gnu
 BINDGEN_TARGET_arm64	:= aarch64-linux-gnu
 BINDGEN_TARGET_arm	:= arm-linux-gnueabi
 BINDGEN_TARGET_loongarch	:= loongarch64-linux-gnusf
+# This is only for i386 UM builds, which need the 32-bit target not -m32
+BINDGEN_TARGET_i386	:= i386-linux-gnu
 BINDGEN_TARGET_um	:= $(BINDGEN_TARGET_$(SUBARCH))
 BINDGEN_TARGET		:= $(BINDGEN_TARGET_$(SRCARCH))