diff --git a/spirv_common.hpp b/spirv_common.hpp
index fbbcab8b..77cb63b7 100644
--- a/spirv_common.hpp
+++ b/spirv_common.hpp
@@ -621,7 +621,7 @@ struct SPIRType : IVariant
 		uint32_t sampled;
 		spv::ImageFormat format;
 		spv::AccessQualifier access;
-	} image;
+	} image = {};
 
 	// Structs can be declared multiple times if they are used as part of interface blocks.
 	// We want to detect this so that we only emit the struct definition once.