diff --git a/app/src/main/jni/awt_xawt/awt_Insets.c b/app/src/main/jni/awt_xawt/awt_Insets.c
index 21349797b..4313a382f 100644
--- a/app/src/main/jni/awt_xawt/awt_Insets.c
+++ b/app/src/main/jni/awt_xawt/awt_Insets.c
@@ -32,6 +32,8 @@
 struct InsetsIDs insetsIDs;
 */
 
+#include <jni.h>
+
 JNIEXPORT void JNICALL
 Java_java_awt_Insets_initIDs(JNIEnv *env, jclass cls)
 {