diff --git a/bundles/org.eclipse.swt/Eclipse SWT WebKit/gtk/library/webkitgtk.h b/bundles/org.eclipse.swt/Eclipse SWT WebKit/gtk/library/webkitgtk.h
index 9a44f85421..b0f2bd707e 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT WebKit/gtk/library/webkitgtk.h	
+++ b/bundles/org.eclipse.swt/Eclipse SWT WebKit/gtk/library/webkitgtk.h	
@@ -52,6 +52,7 @@
 		} \
 		if (handle) { \
 			var = dlsym(handle,	#name); \
+			if (!var) {	g_critical("SWT webkitgtk: Failed to load webkit function %s", #name); } \
 		} \
 		CHECK_DLERROR \
 		initialized = 1; \