diff --git a/ssc/cmod_etes_electric_resistance.cpp b/ssc/cmod_etes_electric_resistance.cpp
index 923faa227..b1e403192 100644
--- a/ssc/cmod_etes_electric_resistance.cpp
+++ b/ssc/cmod_etes_electric_resistance.cpp
@@ -30,8 +30,6 @@ 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 9e7ba4f04..5c0e77599 100644
--- a/ssc/cmod_etes_ptes.cpp
+++ b/ssc/cmod_etes_ptes.cpp
@@ -30,7 +30,6 @@ 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 e9bb3c8de..4a2f36fc7 100644
--- a/ssc/cmod_fresnel_physical.cpp
+++ b/ssc/cmod_fresnel_physical.cpp
@@ -29,7 +29,6 @@ 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 fe040857d..e70c81447 100644
--- a/ssc/cmod_fresnel_physical_iph.cpp
+++ b/ssc/cmod_fresnel_physical_iph.cpp
@@ -29,7 +29,6 @@ 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 dd92cebf2..63c8f73a6 100644
--- a/ssc/cmod_linear_fresnel_dsg_iph.cpp
+++ b/ssc/cmod_linear_fresnel_dsg_iph.cpp
@@ -30,9 +30,6 @@ 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 c6a708bdc..b3759fbef 100644
--- a/ssc/cmod_mspt_iph.cpp
+++ b/ssc/cmod_mspt_iph.cpp
@@ -30,8 +30,6 @@ 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 616ed22d1..f91d8eea7 100644
--- a/ssc/cmod_tcsmolten_salt.cpp
+++ b/ssc/cmod_tcsmolten_salt.cpp
@@ -30,8 +30,6 @@ 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 f3e294433..3efbaf9a9 100644
--- a/ssc/cmod_tcstrough_physical_csp_solver.cpp
+++ b/ssc/cmod_tcstrough_physical_csp_solver.cpp
@@ -30,8 +30,6 @@ 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 2836f6d45..ea2db589b 100644
--- a/ssc/cmod_trough_physical.cpp
+++ b/ssc/cmod_trough_physical.cpp
@@ -30,8 +30,6 @@ 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 35336e553..5d5792668 100644
--- a/ssc/cmod_trough_physical_iph.cpp
+++ b/ssc/cmod_trough_physical_iph.cpp
@@ -30,8 +30,6 @@ 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 225081cd7..f4172b166 100644
--- a/ssc/cmod_trough_physical_iph_old.cpp
+++ b/ssc/cmod_trough_physical_iph_old.cpp
@@ -30,8 +30,6 @@ 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"