diff --git a/src/pulsecore/core-util.c b/src/pulsecore/core-util.c
index 5d2bae92f..be6ad73ce 100644
--- a/src/pulsecore/core-util.c
+++ b/src/pulsecore/core-util.c
@@ -589,7 +589,7 @@ void pa_check_signal_is_blocked(int sig) {
      * blocked. Otherwise fall back to sigprocmask() */
 
 #ifdef HAVE_PTHREAD
-    if (pthread_sigmask(SIG_SETMASK, NULL, &set) < 0) {
+    if (pthread_sigmask(SIG_SETMASK, NULL, &set) != 0) {
 #endif
         if (sigprocmask(SIG_SETMASK, NULL, &set) < 0) {
             pa_log("sigprocmask(): %s", pa_cstrerror(errno));
diff --git a/src/pulsecore/thread-posix.c b/src/pulsecore/thread-posix.c
index 62b0ec464..83c53a6f5 100644
--- a/src/pulsecore/thread-posix.c
+++ b/src/pulsecore/thread-posix.c
@@ -94,7 +94,7 @@ pa_thread* pa_thread_new(const char *name, pa_thread_func_t thread_func, void *u
     t->thread_func = thread_func;
     t->userdata = userdata;
 
-    if (pthread_create(&t->id, NULL, internal_thread_func, t) < 0) {
+    if (pthread_create(&t->id, NULL, internal_thread_func, t) != 0) {
         pa_xfree(t);
         return NULL;
     }
@@ -224,7 +224,7 @@ pa_tls* pa_tls_new(pa_free_cb_t free_cb) {
 
     t = pa_xnew(pa_tls, 1);
 
-    if (pthread_key_create(&t->key, free_cb) < 0) {
+    if (pthread_key_create(&t->key, free_cb) != 0) {
         pa_xfree(t);
         return NULL;
     }