diff --git a/src/emu/debug/dvbpoints.c b/src/emu/debug/dvbpoints.c
index 10871ad0800..a40ab25796a 100644
--- a/src/emu/debug/dvbpoints.c
+++ b/src/emu/debug/dvbpoints.c
@@ -213,7 +213,8 @@ void debug_view_breakpoints::gather_breakpoints()
 	}
 
 	// And now for the sort
-	qsort(&m_buffer[0], m_buffer.count(), sizeof(device_debug::breakpoint *), m_sortType);
+	if (m_buffer.count() > 0)
+		qsort(&m_buffer[0], m_buffer.count(), sizeof(device_debug::breakpoint *), m_sortType);
 }
 
 
diff --git a/src/emu/debug/dvwpoints.c b/src/emu/debug/dvwpoints.c
index bf6618ec7bf..96303c89afc 100644
--- a/src/emu/debug/dvwpoints.c
+++ b/src/emu/debug/dvwpoints.c
@@ -240,7 +240,8 @@ void debug_view_watchpoints::gather_watchpoints()
 	}
 
 	// And now for the sort
-	qsort(&m_buffer[0], m_buffer.count(), sizeof(device_debug::watchpoint *), m_sortType);
+	if (m_buffer.count() > 0)
+		qsort(&m_buffer[0], m_buffer.count(), sizeof(device_debug::watchpoint *), m_sortType);
 }