diff --git a/Alc/backends/oss.c b/Alc/backends/oss.c
index dce42e21..1c3763c6 100644
--- a/Alc/backends/oss.c
+++ b/Alc/backends/oss.c
@@ -22,6 +22,7 @@
 
 #include <sys/ioctl.h>
 #include <sys/types.h>
+#include <sys/time.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <stdlib.h>
diff --git a/Alc/backends/solaris.c b/Alc/backends/solaris.c
index 52ca9090..6eaf1ee5 100644
--- a/Alc/backends/solaris.c
+++ b/Alc/backends/solaris.c
@@ -22,6 +22,7 @@
 
 #include <sys/ioctl.h>
 #include <sys/types.h>
+#include <sys/time.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <stdlib.h>