diff --git a/kernel/debug.h b/kernel/debug.h
index a988e0717..7d8dc3767 100644
--- a/kernel/debug.h
+++ b/kernel/debug.h
@@ -64,7 +64,7 @@
 
 #if DEBUG_VMASSERT
 #define vmassert(t) { \
-	if(!(t)) { minix_panic("vm: assert " #t " failed\n", __LINE__); } }
+	if(!(t)) { minix_panic("vm: assert " #t " failed in " __FILE__, __LINE__); } }
 #else
 #define vmassert(t) { }
 #endif