diff --git a/src/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/LiquidEvaporationSpalding/Make/options b/src/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/LiquidEvaporationSpalding/Make/options
index f836540e0..49b0012a9 100644
--- a/src/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/LiquidEvaporationSpalding/Make/options
+++ b/src/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/LiquidEvaporationSpalding/Make/options
@@ -1,4 +1,4 @@
-EXE_INC = \
+EXE_INC = -std=c++14 \
     -Wno-old-style-cast \
     -I$(LIB_SRC)/lagrangian/basic/lnInclude \
     -I$(LIB_SRC)/lagrangian/distributionModels/lnInclude \
diff --git a/src/radiationModels/Make/options b/src/radiationModels/Make/options
index 9a06a92c2..19ff2f435 100644
--- a/src/radiationModels/Make/options
+++ b/src/radiationModels/Make/options
@@ -1,4 +1,4 @@
-EXE_INC = \
+EXE_INC = -std=c++14 \
     -I$(LIB_SRC)/transportModels/compressible/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(DF_SRC)/thermophysicalModels/thermophysicalProperties/lnInclude \