diff --git a/src/lib/OpenEXRCore/attributes.c b/src/lib/OpenEXRCore/attributes.c
index 4d59e13438..4431c8396f 100644
--- a/src/lib/OpenEXRCore/attributes.c
+++ b/src/lib/OpenEXRCore/attributes.c
@@ -68,12 +68,12 @@ attr_init (exr_context_t ctxt, exr_attribute_t* nattr)
     switch (nattr->type)
     {
         case EXR_ATTR_BOX2I: {
-            exr_attr_box2i_t nil = {0};
+            exr_attr_box2i_t nil = {{0}};
             *(nattr->box2i)      = nil;
             break;
         }
         case EXR_ATTR_BOX2F: {
-            exr_attr_box2f_t nil = {0};
+            exr_attr_box2f_t nil = {{0}};
             *(nattr->box2f)      = nil;
             break;
         }
diff --git a/src/lib/OpenEXRCore/channel_list.c b/src/lib/OpenEXRCore/channel_list.c
index 35574fc235..bd0c2352a9 100644
--- a/src/lib/OpenEXRCore/channel_list.c
+++ b/src/lib/OpenEXRCore/channel_list.c
@@ -80,7 +80,7 @@ exr_attr_chlist_add_with_length (
     int32_t                    xsamp,
     int32_t                    ysamp)
 {
-    exr_attr_chlist_entry_t  nent = {0};
+    exr_attr_chlist_entry_t  nent = {{0}};
     exr_attr_chlist_entry_t *nlist, *olist;
     int                      newcount, insertpos;
     int32_t                  maxlen;
diff --git a/src/test/OpenEXRCoreTest/write.cpp b/src/test/OpenEXRCoreTest/write.cpp
index 1001a9f998..0da35662a9 100644
--- a/src/test/OpenEXRCoreTest/write.cpp
+++ b/src/test/OpenEXRCoreTest/write.cpp
@@ -436,8 +436,8 @@ testWriteBaseHeader (const std::string& tempdir)
         &outf, outfn.c_str (), EXR_WRITE_FILE_DIRECTLY, &cinit));
     EXRCORE_TEST_RVAL (
         exr_add_part (outf, "beauty", EXR_STORAGE_SCANLINE, &partidx));
-    exr_attr_box2i_t dataw = {-2, -3, 514, 515};
-    exr_attr_box2i_t dispw = {0, 0, 512, 512};
+    exr_attr_box2i_t dataw = {{-2, -3}, {514, 515}};
+    exr_attr_box2i_t dispw = {{0, 0}, {512, 512}};
     exr_attr_v2f_t   swc   = {0.5f, 0.5f};
     EXRCORE_TEST_RVAL (exr_initialize_required_attr (
         outf,
@@ -493,7 +493,7 @@ testWriteBaseHeader (const std::string& tempdir)
         &outf, outfn.c_str (), EXR_WRITE_FILE_DIRECTLY, &cinit));
     EXRCORE_TEST_RVAL (
         exr_add_part (outf, "beauty", EXR_STORAGE_TILED, &partidx));
-    dataw = {0, 0, 512, 512};
+    dataw = {{0, 0}, {512, 512}};
     EXRCORE_TEST_RVAL (exr_initialize_required_attr (
         outf,
         partidx,
@@ -929,7 +929,7 @@ testWriteAttrs (const std::string& tempdir)
     }
 
     {
-        exr_attr_box2i_t tb2i = {1, 2, 3, 4};
+        exr_attr_box2i_t tb2i = {{1, 2}, {3, 4}};
         TEST_CORNER_CASE_NAME (box2i, tb2i, int);
         EXRCORE_TEST (tb2i.min.x == 1);
         EXRCORE_TEST (tb2i.min.y == 2);
@@ -938,7 +938,7 @@ testWriteAttrs (const std::string& tempdir)
     }
 
     {
-        exr_attr_box2f_t tb2f = {1.f, 2.f, 3.f, 4.f};
+        exr_attr_box2f_t tb2f = {{1.f, 2.f}, {3.f, 4.f}};
         TEST_CORNER_CASE_NAME (box2f, tb2f, int);
         EXRCORE_TEST (tb2f.min.x == 1.f);
         EXRCORE_TEST (tb2f.min.y == 2.f);
diff --git a/website/src/readTiled1.cpp b/website/src/readTiled1.cpp
index e0943b543d..6e968aa187 100644
--- a/website/src/readTiled1.cpp
+++ b/website/src/readTiled1.cpp
@@ -40,10 +40,11 @@ readTiledOtherVersions (const char fileName[])
 {
     // read tile function versions
     TiledInputFile in(fileName);
-    int tileX, tileY, levelX, levelY, tileXMin, tileXMax, tileYMin, tileYMax;
+    int tileX = 0, tileY = 0, levelX = 0, levelY = 0;
+    int tileXMin = 0, tileXMax = 0, tileYMin = 0, tileYMax = 0;
     // [begin v1]
     in.readTile (tileX, tileY, levelX, levelY);
     // [end v1]
     in.readTiles (tileXMin, tileXMax, tileYMin, tileYMax, levelX, levelY);
     // [end v2]
-}
\ No newline at end of file
+}