diff --git a/evtone.c b/evtone.c
index da57ead..62c8e83 100644
--- a/evtone.c
+++ b/evtone.c
@@ -154,19 +154,19 @@
   struct sigaction action;
   action.sa_handler = handle_signal;
   action.sa_flags = 0;
-  if(sigemptyset(&action.sa_mask)) {
+  if (sigemptyset(&action.sa_mask)) {
     fprintf(stderr, "Unable to empty signal mask: %s\n", strerror(errno));
     return 1;
   }
-  if(sigaction(SIGINT, &action, NULL) == -1) {
+  if (sigaction(SIGINT, &action, NULL) == -1) {
     fprintf(stderr, "Unable to catch SIGINT: %s\n", strerror(errno));
     return 1;
   }
-  if(sigaction(SIGTERM, &action, NULL) == -1) {
+  if (sigaction(SIGTERM, &action, NULL) == -1) {
     fprintf(stderr, "Unable to catch SIGTERM: %s\n", strerror(errno));
     return 1;
   }
-  if(sigaction(SIGPIPE, &action, NULL) == -1) {
+  if (sigaction(SIGPIPE, &action, NULL) == -1) {
     fprintf(stderr, "Unable to catch SIGPIPE: %s\n", strerror(errno));
     return 1;
   }
@@ -176,7 +176,7 @@
 int play_tones(int dry_run, const char *device, struct tone_cmd *tones,
                int tone_count) {
   _cleanup_fd_ int dev = open_device(dry_run, device);
-  if(setup_signals() == -1) {
+  if (setup_signals() == -1) {
     return 1;
   }
   if (dev == -1) {