1 files changed, 2 insertions, 2 deletions

diff --git a/src/alloc.c b/src/alloc.c
index f24d77f0519..5cf22eb62e7 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -131,7 +131,7 @@ static pthread_mutex_t alloc_mutex;
   do                                                    \
     {                                                   \
       if (pthread_equal (pthread_self (), main_thread)) \
-        sigblock (sigmask (SIGIO));                     \
+        BLOCK_INPUT;                                    \
       pthread_mutex_lock (&alloc_mutex);                \
     }                                                   \
   while (0)
@@ -140,7 +140,7 @@ static pthread_mutex_t alloc_mutex;
     {                                                   \
       pthread_mutex_unlock (&alloc_mutex);              \
       if (pthread_equal (pthread_self (), main_thread)) \
-        sigunblock (sigmask (SIGIO));                   \
+        UNBLOCK_INPUT;                                  \
     }                                                   \
   while (0)