diff --git a/src/apps/debugger/arch/Register.cpp b/src/apps/debugger/arch/Register.cpp
index af7d13cb2a..58318a2066 100644
--- a/src/apps/debugger/arch/Register.cpp
+++ b/src/apps/debugger/arch/Register.cpp
@@ -35,7 +35,7 @@ Register::Register(int32 index, const char* name, uint32 bitSize,
 			fFormat = REGISTER_FORMAT_FLOAT;
 			break;
 		default:
-			fFormat = 0;
+			fFormat = REGISTER_FORMAT_INTEGER;
 			break;
 	}
 }