diff --git a/core/binary.mk b/core/binary.mk
index e10ec9c..ce0fd70 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -11,7 +11,7 @@
     $(error $(LOCAL_PATH): LOCAL_NDK_VERSION is now retired.)
   endif
   ifdef LOCAL_IS_HOST_MODULE
-    $(error $(LOCAL_PATH): LOCAL_SDK_VERSION can not be used in host module)
+    $(error $(LOCAL_PATH): LOCAL_SDK_VERSION cannot be used in host module)
   endif
   ifneq ($(filter-out SHARED_LIBRARIES STATIC_LIBRARIES,$(LOCAL_MODULE_CLASS)),)
     $(error $(LOCAL_PATH): NDK can only be used to build target shared/static libraries, \
@@ -98,7 +98,7 @@
 
 ifdef LOCAL_SDK_VERSION
   # Get the list of INSTALLED libraries as module names.
-  # We can not compute the full path of the LOCAL_SHARED_LIBRARIES for
+  # We cannot compute the full path of the LOCAL_SHARED_LIBRARIES for
   # they may cusomize their install path with LOCAL_MODULE_PATH
   installed_shared_library_module_names := \
       $(LOCAL_SHARED_LIBRARIES)