diff --git a/runastyle b/runastyle
index c34bd05c4..c13563733 100755
--- a/runastyle
+++ b/runastyle
@@ -14,7 +14,7 @@ if [[ "`astyle --version 2>&1`" != ${ASTYLE_VERSION}* ]]; then
 fi
 
 style="--style=stroustrup --indent=spaces=4 --indent-namespaces --lineend=linux --min-conditional-indent=0"
-options="--pad-header --unpad-paren --suffix=none"
+options="--pad-header --unpad-paren --suffix=none --convert-tabs"
 
 astyle $style $options cli/*.cpp
 astyle $style $options cli/*.h
diff --git a/runastyle.bat b/runastyle.bat
index 4ee66f58d..3f4a8288d 100644
--- a/runastyle.bat
+++ b/runastyle.bat
@@ -1,7 +1,7 @@
 REM A script to run Astyle for the sources
 
 SET STYLE=--style=stroustrup --indent=spaces=4 --indent-namespaces --lineend=linux --min-conditional-indent=0
-SET OPTIONS=--pad-header --unpad-paren --suffix=none
+SET OPTIONS=--pad-header --unpad-paren --suffix=none --convert-tabs
 
 astyle %STYLE% %OPTIONS% cli/*.cpp
 astyle %STYLE% %OPTIONS% cli/*.h