diff --git a/CMakeLists.txt b/CMakeLists.txt
index dda6979911..97a6386f02 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -231,7 +231,7 @@ if(USE_CCACHE)
         set(CMAKE_C_COMPILER_LAUNCHER ${CCACHE_BINARY})
         set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE_BINARY})
     else()
-        message(WARNING "USE_CCACHE enabled, but no executable found at: ${CCACHE_PATH}")
+        message(FATAL_ERROR "USE_CCACHE enabled, but no executable found at: ${CCACHE_PATH}")
     endif()
 endif()