diff --git a/src/kernel/libroot/posix/stdio/Jamfile b/src/kernel/libroot/posix/stdio/Jamfile
index 762d87edbc..e871327c95 100644
--- a/src/kernel/libroot/posix/stdio/Jamfile
+++ b/src/kernel/libroot/posix/stdio/Jamfile
@@ -48,7 +48,7 @@ KernelMergeObject posix_stdio.o :
 	;
 
 KernelMergeObject kernel_posix_stdio.o :
-	<$(SOURCE_GRIST)>kvsprintf.c
+	<$(SOURCE_GRIST)>kernel_vsprintf.c
 	:
 	-fPIC -DPIC
 	;
diff --git a/src/kernel/libroot/posix/stdio/kvsprintf.c b/src/kernel/libroot/posix/stdio/kernel_vsprintf.c
similarity index 100%
rename from src/kernel/libroot/posix/stdio/kvsprintf.c
rename to src/kernel/libroot/posix/stdio/kernel_vsprintf.c