diff --git a/src/SConscript b/src/SConscript
index c3a7775d753ae52aff1c46423bbd3a7b40e25dfa..8dd44f5df2f5a922b04c5856c518fcb6dc8739d0 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -26,6 +26,9 @@ if GetDepend('RT_USING_MEMHEAP') == False:
 if GetDepend('RT_USING_USERHEAP'):
     SrcRemove(src, ['mem.c', 'slab.c'])
 
+if GetDepend('RT_USING_SIGNALS') == False:
+    SrcRemove(src, ['signal.c'])
+
 if GetDepend('RT_USING_DEVICE') == False:
     SrcRemove(src, ['device.c'])