diff --git a/src/system/kernel/util/Jamfile b/src/system/kernel/util/Jamfile
index c7177b0f79..00d5d91157 100644
--- a/src/system/kernel/util/Jamfile
+++ b/src/system/kernel/util/Jamfile
@@ -4,7 +4,7 @@ UsePrivateHeaders [ FDirName kernel util ] ;
 
 KernelMergeObject kernel_util.o :
 	cbuf.c
-	datastore.c
+	datastore.cpp
 	kernel_cpp.cpp
 	khash.c
 	list.c