diff --git a/exercises/04/vslc/src/vslc.c b/exercises/04/vslc/src/vslc.c
index 9ca271e..2c0967e 100644
--- a/exercises/04/vslc/src/vslc.c
+++ b/exercises/04/vslc/src/vslc.c
@@ -6,19 +6,19 @@
 
 /* Global state */
 
-node_t *root;               // Syntax tree
-tlhash_t *global_names;     // Symbol table
-char **string_list;         // List of strings in the source
-size_t n_string_list = 8;   // Initial string list capacity (grow on demand)
-size_t stringc = 0;         // Initial string count
+node_t *root;                   // Syntax tree
+tlhash_t *global_names;         // Symbol table
+char **string_list;             // List of strings in the source
+size_t n_string_list    = 8;    // Initial string list capacity (grow on demand)
+size_t stringc          = 0;    // Initial string count
 
 /* Command line option parsing for the main function */
 static void options ( int argc, char **argv );
 bool
-    print_full_tree = false,
-    print_simplified_tree = false,
+    print_full_tree             = false,
+    print_simplified_tree       = false,
     print_symbol_table_contents = false,
-    new_print_style = true;
+    new_print_style             = true;
 
 
 /* Entry point */
@@ -27,8 +27,8 @@ main ( int argc, char **argv )
 {
     options ( argc, argv );
 
-    yyparse();  // Generated from grammar/bison, constructs syntax tree
-    yylex_destroy(); // Free heap used by flex
+    yyparse();                  // Generated from grammar/bison, constructs syntax tree
+    yylex_destroy();            // Free heap used by flex
 
     if ( print_full_tree )
         print_syntax_tree ();
@@ -36,7 +36,7 @@ main ( int argc, char **argv )
     if ( print_simplified_tree )
         print_syntax_tree ();
 
-    create_symbol_table ();   // In ir.c
+    create_symbol_table ();     // In ir.c
     if ( print_symbol_table_contents )
         print_symbol_table();