diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index d5483f22802..c295fa0ba80 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -57,8 +57,8 @@ endif()
 
 find_program(CCACHE_FOUND ccache)
 if(CCACHE_FOUND)
-  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
-  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
+  set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE_FOUND})
+  set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ${CCACHE_FOUND})
 endif(CCACHE_FOUND)
 
 # ----------------------------------------------------------------------