diff --git a/ssc/cmod_etes_electric_resistance.cpp b/ssc/cmod_etes_electric_resistance.cpp
index b1e403192..923faa227 100644
--- a/ssc/cmod_etes_electric_resistance.cpp
+++ b/ssc/cmod_etes_electric_resistance.cpp
@@ -30,6 +30,8 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#define _HAS_STD_BYTE 0
+
 
 #include "core.h"
 
diff --git a/ssc/cmod_etes_ptes.cpp b/ssc/cmod_etes_ptes.cpp
index 5c0e77599..9e7ba4f04 100644
--- a/ssc/cmod_etes_ptes.cpp
+++ b/ssc/cmod_etes_ptes.cpp
@@ -30,6 +30,7 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#define _HAS_STD_BYTE 0
 
 #include "core.h"
 
diff --git a/ssc/cmod_fresnel_physical.cpp b/ssc/cmod_fresnel_physical.cpp
index 4a2f36fc7..e9bb3c8de 100644
--- a/ssc/cmod_fresnel_physical.cpp
+++ b/ssc/cmod_fresnel_physical.cpp
@@ -29,6 +29,7 @@ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
+#define _HAS_STD_BYTE 0
 
 #include "core.h"
 
diff --git a/ssc/cmod_fresnel_physical_iph.cpp b/ssc/cmod_fresnel_physical_iph.cpp
index e70c81447..fe040857d 100644
--- a/ssc/cmod_fresnel_physical_iph.cpp
+++ b/ssc/cmod_fresnel_physical_iph.cpp
@@ -29,6 +29,7 @@ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
+#define _HAS_STD_BYTE 0
 
 #include "core.h"
 
diff --git a/ssc/cmod_linear_fresnel_dsg_iph.cpp b/ssc/cmod_linear_fresnel_dsg_iph.cpp
index 63c8f73a6..dd92cebf2 100644
--- a/ssc/cmod_linear_fresnel_dsg_iph.cpp
+++ b/ssc/cmod_linear_fresnel_dsg_iph.cpp
@@ -30,6 +30,9 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#define _HAS_STD_BYTE 0
+
+
 // Steam Linear Fresnel - direct steam generation 
 #include "core.h"
 #include "tckernel.h"
diff --git a/ssc/cmod_mspt_iph.cpp b/ssc/cmod_mspt_iph.cpp
index b3759fbef..c6a708bdc 100644
--- a/ssc/cmod_mspt_iph.cpp
+++ b/ssc/cmod_mspt_iph.cpp
@@ -30,6 +30,8 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#define _HAS_STD_BYTE 0
+
 #include "core.h"
 
 // for adjustment factors
diff --git a/ssc/cmod_tcsmolten_salt.cpp b/ssc/cmod_tcsmolten_salt.cpp
index f91d8eea7..616ed22d1 100644
--- a/ssc/cmod_tcsmolten_salt.cpp
+++ b/ssc/cmod_tcsmolten_salt.cpp
@@ -30,6 +30,8 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#define _HAS_STD_BYTE 0
+
 #include "core.h"
 
 // for adjustment factors
diff --git a/ssc/cmod_tcstrough_physical_csp_solver.cpp b/ssc/cmod_tcstrough_physical_csp_solver.cpp
index 3efbaf9a9..f3e294433 100644
--- a/ssc/cmod_tcstrough_physical_csp_solver.cpp
+++ b/ssc/cmod_tcstrough_physical_csp_solver.cpp
@@ -30,6 +30,8 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#define _HAS_STD_BYTE 0
+
 // Trough CSP - physical model
 #include "core.h"
 #include "tckernel.h"
diff --git a/ssc/cmod_trough_physical.cpp b/ssc/cmod_trough_physical.cpp
index ea2db589b..2836f6d45 100644
--- a/ssc/cmod_trough_physical.cpp
+++ b/ssc/cmod_trough_physical.cpp
@@ -30,6 +30,8 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#define _HAS_STD_BYTE 0
+
 // Trough CSP - physical model
 #include "core.h"
 //#include "tckernel.h"
diff --git a/ssc/cmod_trough_physical_iph.cpp b/ssc/cmod_trough_physical_iph.cpp
index 5d5792668..35336e553 100644
--- a/ssc/cmod_trough_physical_iph.cpp
+++ b/ssc/cmod_trough_physical_iph.cpp
@@ -30,6 +30,8 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#define _HAS_STD_BYTE 0
+
 // Trough CSP - physical model
 #include "core.h"
 //#include "tckernel.h"
diff --git a/ssc/cmod_trough_physical_iph_old.cpp b/ssc/cmod_trough_physical_iph_old.cpp
index f4172b166..225081cd7 100644
--- a/ssc/cmod_trough_physical_iph_old.cpp
+++ b/ssc/cmod_trough_physical_iph_old.cpp
@@ -30,6 +30,8 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#define _HAS_STD_BYTE 0
+
 // Trough CSP - physical model
 #include "core.h"
 //#include "tckernel.h"