diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index 5bae619..ceb2fc7 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -607,7 +607,7 @@
 Evaluate the source in the context of globals and locals.\n\
 The source may be a string representing a Python expression\n\
 or a code object as returned by compile().\n\
-The globals must be a dictionary and locals can be any mappping,\n\
+The globals must be a dictionary and locals can be any mapping,\n\
 defaulting to the current globals and locals.\n\
 If only globals is given, locals defaults to it.\n");