diff --git a/parse.y b/parse.y
index 57f7142f1d..e42cd9e79f 100644
--- a/parse.y
+++ b/parse.y
@@ -5317,16 +5317,16 @@ yycompile0(VALUE arg)
     parser->parser_token_info_enabled = !compile_for_eval && RTEST(ruby_verbose);
 #endif
 #ifndef RIPPER
-    if(RUBY_DTRACE_PARSE_BEGIN_ENABLED()) {
+    if (RUBY_DTRACE_PARSE_BEGIN_ENABLED()) {
 	RUBY_DTRACE_PARSE_BEGIN(parser->parser_ruby_sourcefile,
-		parser->parser_ruby_sourceline);
+				parser->parser_ruby_sourceline);
     }
 #endif
     n = yyparse((void*)parser);
 #ifndef RIPPER
-    if(RUBY_DTRACE_PARSE_END_ENABLED()) {
+    if (RUBY_DTRACE_PARSE_END_ENABLED()) {
 	RUBY_DTRACE_PARSE_END(parser->parser_ruby_sourcefile,
-		parser->parser_ruby_sourceline);
+			      parser->parser_ruby_sourceline);
     }
 #endif
     ruby_debug_lines = 0;
diff --git a/thread.c b/thread.c
index 23bcdf48c4..823ec03053 100644
--- a/thread.c
+++ b/thread.c
@@ -883,7 +883,7 @@ double2timeval(double d)
 }
 
 static void
-sleep_forever(rb_thread_t *th, int deadlockable,int spurious_check)
+sleep_forever(rb_thread_t *th, int deadlockable, int spurious_check)
 {
     enum rb_thread_status prev_status = th->status;
     enum rb_thread_status status = deadlockable ? THREAD_STOPPED_FOREVER : THREAD_STOPPED;
@@ -900,7 +900,7 @@ sleep_forever(rb_thread_t *th, int deadlockable,int spurious_check)
 	    th->vm->sleeper--;
 	}
 	RUBY_VM_CHECK_INTS_BLOCKING(th);
-	if(!spurious_check)
+	if (!spurious_check)
 	    break;
     }
     th->status = prev_status;
@@ -923,7 +923,7 @@ getclockofday(struct timeval *tp)
 }
 
 static void
-sleep_timeval(rb_thread_t *th, struct timeval tv,int spurious_check)
+sleep_timeval(rb_thread_t *th, struct timeval tv, int spurious_check)
 {
     struct timeval to, tvn;
     enum rb_thread_status prev_status = th->status;
@@ -951,7 +951,7 @@ sleep_timeval(rb_thread_t *th, struct timeval tv,int spurious_check)
 	    --tv.tv_sec;
 	    tv.tv_usec += 1000000;
 	}
-	if(!spurious_check)
+	if (!spurious_check)
 	    break;
     }
     th->status = prev_status;
@@ -989,9 +989,9 @@ timeofday(void)
 }
 
 static void
-sleep_wait_for_interrupt(rb_thread_t *th, double sleepsec,int spurious_check)
+sleep_wait_for_interrupt(rb_thread_t *th, double sleepsec, int spurious_check)
 {
-    sleep_timeval(th, double2timeval(sleepsec),spurious_check);
+    sleep_timeval(th, double2timeval(sleepsec), spurious_check);
 }
 
 static void