diff --git a/CMakeLists.txt b/CMakeLists.txt
index aab5c293..01b50a6b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -204,8 +204,8 @@ endif()
 #--------------------------------------------------------------------
 # Create generated files
 #--------------------------------------------------------------------
-configure_file("${GLFW_SOURCE_DIR}/docs/Doxyfile.in"
-               "${GLFW_BINARY_DIR}/docs/Doxyfile" @ONLY)
+configure_file(${GLFW_SOURCE_DIR}/docs/Doxyfile.in
+               ${GLFW_BINARY_DIR}/docs/Doxyfile @ONLY)
 
 configure_file(${GLFW_SOURCE_DIR}/src/config.h.in 
                ${GLFW_BINARY_DIR}/src/config.h @ONLY)