diff --git a/src/sat.cpp b/src/sat.cpp
index 19de0d0..dc068c5 100644
--- a/src/sat.cpp
+++ b/src/sat.cpp
@@ -1559,6 +1559,7 @@
             invert_bandwidth);
 }
 
+#ifdef HAVE_LIBAIO_H
 void Sat::DiskStats() {
   float disk_data = 0.;
   float disk_bandwidth = 0.;
@@ -1583,6 +1584,7 @@
             disk_data,
             disk_bandwidth);
 }
+#endif
 
 // Process worker thread data for bandwidth information, and error results.
 // You can add more methods here just subclassing SAT.
@@ -1593,7 +1595,9 @@
   NetStats();
   CheckStats();
   InvertStats();
+#ifdef HAVE_LIBAIO_H
   DiskStats();
+#endif
 }
 
 // Get total error count, summing across all threads..
diff --git a/src/sat.h b/src/sat.h
index b48f519..3ecdc10 100644
--- a/src/sat.h
+++ b/src/sat.h
@@ -279,7 +279,9 @@
   void NetStats();
   void CheckStats();
   void InvertStats();
+#ifdef HAVE_LIBAIO_H
   void DiskStats();
+#endif
 
   void QueueStats();