diff --git a/boot/optee-os/optee-os.mk b/boot/optee-os/optee-os.mk
index 33b4e2e1ab..36dfbd2cc9 100644
--- a/boot/optee-os/optee-os.mk
+++ b/boot/optee-os/optee-os.mk
@@ -61,7 +61,7 @@ OPTEE_OS_MAKE_OPTS += \
 	CFG_ARM32_core=y
 endif
 
-# Get mandatory PLAFORM and optional PLATFORM_FLAVOR and additional
+# Get mandatory PLATFORM and optional PLATFORM_FLAVOR and additional
 # variables
 OPTEE_OS_MAKE_OPTS += PLATFORM=$(call qstrip,$(BR2_TARGET_OPTEE_OS_PLATFORM))
 ifneq ($(call qstrip,$(BR2_TARGET_OPTEE_OS_PLATFORM_FLAVOR)),)