diff --git a/lfs/Config b/lfs/Config
index 516fb1cab..76f279da9 100644
--- a/lfs/Config
+++ b/lfs/Config
@@ -37,10 +37,22 @@ ifeq "$(BUILD_ARCH)" "aarch64"
 	IS_64BIT = 1
 endif
 
+ifeq "$(BUILD_ARCH)" "armv7hl"
+	IS_32BIT = 1
+endif
+
+ifeq "$(BUILD_ARCH)" "armv5tel"
+	IS_32BIT = 1
+endif
+
 ifeq "$(BUILD_ARCH)" "x86_64"
 	IS_64BIT = 1
 endif
 
+ifeq "$(BUILD_ARCH)" "i586"
+	IS_32BIT = 1
+endif
+
 ifeq "$(TOOLCHAIN)" "1"
 	PREFIX = $(TOOLS_DIR)
 else