diff --git a/src/runtime/java/jsg.c b/src/runtime/java/jsg.c
index 61ee2488e..9419ac127 100644
--- a/src/runtime/java/jsg.c
+++ b/src/runtime/java/jsg.c
@@ -1,6 +1,7 @@
 #include <jni.h>
 #include <sg/sg.h>
 #include <pgf/expr.h>
+#include <pgf/linearizer.h>
 #include "jni_utils.h"
 
 JNIEXPORT jobject JNICALL