diff --git a/mingw-w64-libexodus/PKGBUILD b/mingw-w64-libexodus/PKGBUILD
index ea778784dc..94994d6ce8 100644
--- a/mingw-w64-libexodus/PKGBUILD
+++ b/mingw-w64-libexodus/PKGBUILD
@@ -22,9 +22,11 @@ makedepends=("unzip"
 url="https://gsjaardema.github.io/seacas/"
 license=('BSD')
 source=("https://github.com/gsjaardema/seacas/archive/v${_releases}.zip"
-        "cmake-fix.patch")
+        "cmake-fix.patch"
+        "netcdf-4.9.0-fix.patch")
 sha256sums=('818f9eff35a4fae682cf3b81897d49736c332cb3549ae2b2fc22678b21ee06ee'
-            '5248fe9045d203770eb18510b4746c47e10d269db691adc98f43aa419c2b9aa4')
+            '5248fe9045d203770eb18510b4746c47e10d269db691adc98f43aa419c2b9aa4'
+            'c88343e7c943fdd1e8f1d0969b8a3b61b02cbdae936884f66ea97352e0a3219b')
 noextract=("v${_releases}.zip") # bsdtar could not unpack this archive
 
 prepare() {  
@@ -34,6 +36,7 @@ prepare() {
   sed -i 's:-pedantic:/:g' cmake-exodus
 
   patch -Np1 -i "${srcdir}/cmake-fix.patch"
+  patch -Np1 -i "${srcdir}/netcdf-4.9.0-fix.patch"
 }
 
 build() {
diff --git a/mingw-w64-libexodus/netcdf-4.9.0-fix.patch b/mingw-w64-libexodus/netcdf-4.9.0-fix.patch
new file mode 100644
index 0000000000..e5ca90531f
--- /dev/null
+++ b/mingw-w64-libexodus/netcdf-4.9.0-fix.patch
@@ -0,0 +1,17 @@
+--- seacas-2021-05-12/packages/seacas/libraries/exodus/src/ex_utils.c
++++ seacas-2021-05-12/packages/seacas/libraries/exodus/src/ex_utils.c
+@@ -1741,8 +1741,12 @@ void ex__compress_variable(int exoid, int varid, int type)
+            for details on SZIP library and parameters.
+         */
+ 
+-        /* const int NC_SZIP_EC = 4; */ /* Selects entropy coding method for szip. */
+-        const int NC_SZIP_NN = 32;      /* Selects nearest neighbor coding method for szip. */
++#if !defined(NC_SZIP_EC)
++        const int NC_SZIP_EC = 4; /* Selects entropy coding method for szip. */
++#endif
++#if !defined(NC_SZIP_NN)
++        const int NC_SZIP_NN = 32; /* Selects nearest neighbor coding method for szip. */
++#endif
+         /* Even and between 4 and 32; typical values are 8, 10, 16, 32 */
+         const int SZIP_PIXELS_PER_BLOCK =
+             file->compression_level == 0 ? 32 : file->compression_level;