diff --git a/CMakeLists.txt b/CMakeLists.txt
index 721b0931..2817c07b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,7 +21,7 @@ option(RPCLIB_BUILD_EXAMPLES
   "Build examples." 
   OFF)
 option(RPCLIB_ENABLE_LOGGING 
-  "ALlow logging in the library for debug purposes."
+  "Allow logging in the library for debug purposes."
   OFF)
 option(RPCLIB_ENABLE_COVERAGE 
   "Generate coverage information"