diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4690c74cc..501e0e1cd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -381,14 +381,15 @@ endif ()
 
 # Detect g++ version
 if (CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
-    execute_process(COMMAND sed -i "/QMAKE_CXXFLAGS += -Wno-error=template-id-cdtor/d" qrenderdoc/qrenderdoc.pro)
+    set(QRENDERDOCPRO "${PROJECT_SOURCE_DIR}/qrenderdoc/qrenderdoc.pro")
+    execute_process(COMMAND sed -i "/QMAKE_CXXFLAGS += -Wno-error=template-id-cdtor/d" ${QRENDERDOCPRO})
     execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpfullversion OUTPUT_VARIABLE GCC_VERSION)
     string(REGEX MATCHALL "[0-9]+" GCC_VERSION_COMPONENTS ${GCC_VERSION})
     list(GET GCC_VERSION_COMPONENTS 0 GCC_MAJOR)
     list(GET GCC_VERSION_COMPONENTS 1 GCC_MINOR)
     message(STATUS "gcc-mj=${GCC_MAJOR}, gcc-mn=${GCC_MINOR}")
     if(GCC_MAJOR GREATER_EQUAL "14")
-        execute_process(COMMAND sed -i "/QMAKE_CXXFLAGS += -Wno-deprecated-declarations/a\\QMAKE_CXXFLAGS += -Wno-error=template-id-cdtor" qrenderdoc/qrenderdoc.pro)   
+        execute_process(COMMAND sed -i "/QMAKE_CXXFLAGS += -Wno-deprecated-declarations/a\\QMAKE_CXXFLAGS += -Wno-error=template-id-cdtor" ${QRENDERDOCPRO})   
         message(STATUS "add option -Wno-error=template-id-cdtor")
     endif()
 endif()