diff --git a/.gitignore b/.gitignore
index fb405ae..f2caf3b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@
 /wgrib2.tgz.v1.9.1
 /wgrib2-1.9.1.c.tar.gz
 /wgrib2.tgz.v1.9.1.c
+/wgrib2-1.9.3.tar.gz
+/wgrib2.tgz.v1.9.3
diff --git a/config.h b/config.h
index 1c988ec..f8533dd 100644
--- a/config.h
+++ b/config.h
@@ -1,6 +1,5 @@
 /* config.h */
 #define USE_REGEX
 #define USE_TIGGE
-#define USE_NETCDF3
 #define USE_NETCDF4
 #define USE_MYSQL
diff --git a/sources b/sources
index 3413512..c62a9f2 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-e51c9fe003d65d51a1df29e8f35dc09d  wgrib2-1.9.1.c.tar.gz
-d653208a7b58e572a2641d29943ef0d9  wgrib2.tgz.v1.9.1.c
+4bd081f4326543b52dcf12f8abb3f823  wgrib2-1.9.3.tar.gz
+08f584aceaff2c5ccc24ad6faa152950  wgrib2.tgz.v1.9.3
diff --git a/wgrib2-1.9.3-ifdef.patch b/wgrib2-1.9.3-ifdef.patch
new file mode 100644
index 0000000..b213ddc
--- /dev/null
+++ b/wgrib2-1.9.3-ifdef.patch
@@ -0,0 +1,11 @@
+--- grib2/wgrib2/Netcdf.c.ifdef	2011-05-17 11:54:05.000000000 -0600
++++ grib2/wgrib2/Netcdf.c	2011-05-26 10:26:23.670517035 -0600
+@@ -28,7 +28,7 @@
+ #include <netcdf.h>
+ 
+ // change by Sander Hulst 5/2011, for netcdf-4 library compiled without netcdf-4/hdf format 
+-#if define USE_NETCDF3
++#if defined USE_NETCDF3
+ #undef NC_NETCDF4
+ #endif
+ 
diff --git a/wgrib2.spec b/wgrib2.spec
index e5ba68d..3c7045c 100644
--- a/wgrib2.spec
+++ b/wgrib2.spec
@@ -1,5 +1,5 @@
 Name:           wgrib2
-Version:        1.9.1.c
+Version:        1.9.3
 Release:        1%{?dist}
 Summary:        Manipulate, inventory and decode GRIB2 files
 
@@ -15,6 +15,7 @@ URL:            http://www.cpc.ncep.noaa.gov/products/wesley/wgrib2/
 #Source0:        ftp://ftp.cpc.ncep.noaa.gov/wd51we/wgrib2/wgrib2.tgz.v%{version}
 Source0:        wgrib2-%{version}.tar.gz
 Source1:        config.h
+Patch0:         wgrib2-1.9.3-ifdef.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 BuildRequires:  g2clib-static, zlib-devel, netcdf-devel
@@ -27,6 +28,7 @@ extract data. You can do basic database operations and other nifty things.
 
 %prep
 %setup -q -n grib2
+%patch0 -p1 -b .ifdef
 rm -rf g2clib-* *.tar.gz
 cp %SOURCE1 wgrib2/config.h
 
@@ -35,7 +37,7 @@ cp %SOURCE1 wgrib2/config.h
 cd wgrib2
 export CFLAGS="-I%{_includedir}/netcdf -I%{_includedir}/mysql $RPM_OPT_FLAGS"
 export LDFLAGS="-lgrib2c -ljasper -lnetcdf -lpng -L%{_libdir}/mysql -lmysqlclient -lz -lm"
-make %{?_smp_mflags}
+make
 
 
 %install
@@ -55,6 +57,11 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Thu May 26 2011 Orion Poplawski <orion@cora.nwra.com> - 1.9.3-1
+- Update to 1.9.3
+- Add patch to fix ifdef typo
+- Drop parallel make, not safe
+
 * Thu Mar 31 2011 Orion Poplawski <orion@cora.nwra.com> - 1.9.1.c-1
 - Update to 1.9.1.c