diff --git a/scripts/sipify.pl b/scripts/sipify.pl
index 2449f6d82c9..edc21c02b63 100755
--- a/scripts/sipify.pl
+++ b/scripts/sipify.pl
@@ -392,10 +392,10 @@ while ($line_idx < $line_count){
                     pop(@global_bracket_nesting_index);
                     pop(@ACCESS);
 
-		    die "Class $classname in $headerfile should be exported with appropriate [LIB]_EXPORT macro. If this should not be available in python, wrap it in a `#ifndef SIP_RUN` block."
-		        if $EXPORTED[-1] == 0;
+                    die "Class $classname in $headerfile should be exported with appropriate [LIB]_EXPORT macro. If this should not be available in python, wrap it in a `#ifndef SIP_RUN` block."
+                        if $EXPORTED[-1] == 0;
 
-		    pop @EXPORTED;
+                    pop @EXPORTED;
                 }
                 if ($#ACCESS == 0){
                     dbg_info("reached top level");
@@ -461,7 +461,7 @@ while ($line_idx < $line_count){
     if ( $line =~ m/^\s*struct(\s+\w+_EXPORT)?\s+\w+$/ ) {
         dbg_info("  going to struct => public");
         push @ACCESS, PUBLIC;
-	push @EXPORTED, 0;
+        push @EXPORTED, $EXPORTED[-1];
         push @global_bracket_nesting_index, 0;
     }
 
@@ -476,7 +476,7 @@ while ($line_idx < $line_count){
         my @template_inheritance_class = ();
         do {no warnings 'uninitialized';
             $classname = $3;
-	    $EXPORTED[-1]++ if $line =~ m/\b[A-Z]+_EXPORT\b/;
+            $EXPORTED[-1]++ if $line =~ m/\b[A-Z]+_EXPORT\b/;
         };
         $line = "$1 $3";
         # Inheritance
@@ -634,10 +634,10 @@ while ($line_idx < $line_count){
         $line =~ s/\bnullptr\b/0/g;
         $line =~ s/\s*=\s*default\b//g;
 
-	if( $line =~ /\w+_EXPORT/ ) {
-		$EXPORTED[-1]++;
-		$line =~ s/\b\w+_EXPORT\s+//g;
-	}
+        if( $line =~ /\w+_EXPORT/ ) {
+                $EXPORTED[-1]++;
+                $line =~ s/\b\w+_EXPORT\s+//g;
+        }
 
         # remove constructor definition, function bodies, member initializing list
         $SIP_RUN == 1 or detect_and_remove_following_body_or_initializerlist();