diff --git a/src/build/libroot/Jamfile b/src/build/libroot/Jamfile
index 253562faba..fcf5731de2 100644
--- a/src/build/libroot/Jamfile
+++ b/src/build/libroot/Jamfile
@@ -32,7 +32,7 @@ if $(HOST_PLATFORM) = freebsd {
 	hostPlatformSources = fs_freebsd.cpp ;
 }
 
-BuildPlatformSharedLibrary libroot_build.so :
+local librootSources =
 	atomic.cpp
 	byteorder.cpp
 	errors.cpp
@@ -47,10 +47,18 @@ BuildPlatformSharedLibrary libroot_build.so :
 
 	$(strlSources)
 	strnlen.c
+;
 
+BuildPlatformSharedLibrary libroot_build.so :
+	$(librootSources)
 	:
 	$(HOST_LIBSUPC++) $(HOST_LIBSTDC++)
 ;
 
+BuildPlatformStaticLibrary libroot_build.a :
+	:
+	[ FGristFiles $(librootSources:S=$(SUFOBJ)) ]
+;
+
 SEARCH on [ FGristFiles $(strlSources) strnlen.c ]
 	= [ FDirName $(HAIKU_TOP) src system libroot posix string ] ;