diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4db039cb..80650c59 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ project (benchmark)
 # Make sure we can import out CMake functions
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
-# We need threads in this project
+# Resolve dependent packages
 find_package(Threads REQUIRED)
 
 # Import and build Google Test
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a2afb0cb..73992efe 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,12 +1,15 @@
+# Define the source files
 set(SOURCE_FILES "benchmark.cc" "colorprint.cc" "commandlineflags.cc" "sleep.cc" "sysinfo.cc" "walltime.cc")
 set(RE_FILES "re.cc")
 
+# Build a regular expression library
 add_library(benchmark_re ${RE_FILES})
 set_target_properties(benchmark_re PROPERTIES
   VERSION ${GENERIC_LIB_VERSION}
   SOVERSION ${GENERIC_LIB_SOVERSION}
 )
 
+# Build the benchmark library
 add_library(benchmark ${SOURCE_FILES} ${RE_FILES})
 set_target_properties(benchmark PROPERTIES
   VERSION ${GENERIC_LIB_VERSION}