diff --git a/configure b/configure
index 392ca140c0a..e57707dc0b6 100755
--- a/configure
+++ b/configure
@@ -148,11 +148,9 @@ if [ -z "$optfile" ]; then   # only write optfile if not currently redoing
 
     cmake -DIN_FILE="${opttmpfilepath}" -DOUT_FILE="${optfilepath}" -DIGNORE_ARGS=-top-level -P "${relpath}/cmake/QtWriteArgsFile.cmake"
 else
-    # In case config.opt.in is missing for some reason
-    if [ ! -f "$opttmpfilepath" ]; then
-        > "$opttmpfilepath"
-        for arg in `cat $optfile`; do echo \"$arg\" >> "$opttmpfilepath"; done
-    fi
+    # Rewriting config.opt into config.opt.in anyway. Allows for direct manipulation of config.opt
+    > "$opttmpfilepath"
+    for arg in `cat $optfile`; do echo \"$arg\" >> "$opttmpfilepath"; done
 
     cmake -DIN_FILE="${opttmpfilepath}" -DREDO_FILE="${redotmpfilepath}" -DOUT_FILE="${redofilepath}" -DIGNORE_ARGS=-top-level -P "${relpath}/cmake/QtWriteArgsFile.cmake"
     optfilepath=${redofilepath}
diff --git a/configure.bat b/configure.bat
index f3176d3e7ac..1da3740a244 100644
--- a/configure.bat
+++ b/configure.bat
@@ -84,8 +84,12 @@ set REDO_TMP_FILE_PATH=%TOPQTDIR%\config.redo.in
 set FRESH_REQUESTED_ARG=
 if not defined redoing (
     echo.%*>"%OPT_TMP_FILE_PATH%"
+
     cmake -DIN_FILE="%OPT_TMP_FILE_PATH%" -DOUT_FILE="%OPT_FILE_PATH%" -DIGNORE_ARGS=-top-level -P "%QTSRC%\cmake\QtWriteArgsFile.cmake"
 ) else (
+    echo. 2> "%OPT_TMP_FILE_PATH%"
+    for /F "usebackq tokens=*" %%A in ("%OPT_FILE_PATH%") do echo "%%A" >> "%OPT_TMP_FILE_PATH%"
+
     cmake -DIN_FILE="%OPT_TMP_FILE_PATH%" -DREDO_FILE="%REDO_TMP_FILE_PATH%" -DOUT_FILE="%REDO_FILE_PATH%" -DIGNORE_ARGS="-top-level;-redo;--redo" -P "%QTSRC%\cmake\QtWriteArgsFile.cmake"
 
     set OPT_FILE_PATH=%REDO_FILE_PATH%