diff --git a/code/MDCFileData.h b/code/MDCFileData.h
index 158000518..ba5789e0f 100644
--- a/code/MDCFileData.h
+++ b/code/MDCFileData.h
@@ -117,6 +117,21 @@ struct Surface
     uint32_t ulOffsetFrameCompFrames ;
     uint32_t ulOffsetEnd;
     Surface()
+        : ulIdent(),
+        ulFlags(),
+        ulNumCompFrames(),
+        ulNumBaseFrames(),
+        ulNumShaders(),
+        ulNumVertices(),
+        ulNumTriangles(),
+        ulOffsetTriangles(),
+        ulOffsetShaders(),
+        ulOffsetTexCoords(),
+        ulOffsetBaseVerts(),
+        ulOffsetCompVerts(),
+        ulOffsetFrameBaseFrames(),
+        ulOffsetFrameCompFrames(),
+        ulOffsetEnd()
     {
         ucName[AI_MDC_MAXQPATH-1] = '\0';
     }