diff --git a/src/bin/network/tcpdump/libpcap/Jamfile b/src/bin/network/tcpdump/libpcap/Jamfile
index 36e87f1cd1..d5e681934b 100644
--- a/src/bin/network/tcpdump/libpcap/Jamfile
+++ b/src/bin/network/tcpdump/libpcap/Jamfile
@@ -27,5 +27,6 @@ StaticLibrary libpcap.a :
 	version.c
 ;
 
-# scanner.l includes the generated grammar.h
-Includes [ FGristFiles scanner.l ] : [ FGristFiles grammar.h ] ;
+# scanner.l includes the generated grammar.h, but we need to
+# declare the dependency from .o to .c
+Depends [ FGristFiles scanner.o ] : [ FGristFiles grammar.c ] ;