diff --git a/hphp/runtime/ext/sbcc/config.cmake b/hphp/runtime/ext/sbcc/config.cmake
new file mode 100644
index 00000000000000..1bf0c3a4971c1d
--- /dev/null
+++ b/hphp/runtime/ext/sbcc/config.cmake
@@ -0,0 +1,9 @@
+HHVM_DEFINE_EXTENSION("sbcc"
+  SOURCES
+    ext_sbcc.cpp
+    format/sbcc-cache.cpp
+    format/sbcc-reader.cpp
+    format/sbcc-writer.cpp
+  SYSTEMLIB
+    ext_sbcc.php
+)
diff --git a/hphp/util/hphp-config.h.in b/hphp/util/hphp-config.h.in
index 393b3b586a052b..be8eea355c3cf2 100644
--- a/hphp/util/hphp-config.h.in
+++ b/hphp/util/hphp-config.h.in
@@ -88,7 +88,7 @@ ${HHVM_COMPILES_DEFINE_STRING}
 #endif
 
 #ifdef USE_CMAKE
-# if ${HHVM_EXTENSION_COUNT} != 100
+# if ${HHVM_EXTENSION_COUNT} != 102
 #  error You need to update the config file for the new builtin extension, and add the define to the FB section
 # endif
 ${HHVM_EXTENSIONS_ENABLED_DEFINE_STRING}