diff --git a/applications/solvers/compressible/rhoPimpleFoam/Make/options b/applications/solvers/compressible/rhoPimpleFoam/Make/options
index 6a29940926..7259f6551e 100644
--- a/applications/solvers/compressible/rhoPimpleFoam/Make/options
+++ b/applications/solvers/compressible/rhoPimpleFoam/Make/options
@@ -9,7 +9,7 @@ EXE_INC = \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
-    -I$(LIB_SRC)/regionFaModels\lnInclude
+    -I$(LIB_SRC)/regionFaModels/lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \
diff --git a/applications/solvers/compressible/rhoSimpleFoam/Make/options b/applications/solvers/compressible/rhoSimpleFoam/Make/options
index fa15d29744..a031a71c25 100644
--- a/applications/solvers/compressible/rhoSimpleFoam/Make/options
+++ b/applications/solvers/compressible/rhoSimpleFoam/Make/options
@@ -7,7 +7,7 @@ EXE_INC = \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
-    -I$(LIB_SRC)/regionFaModels\lnInclude
+    -I$(LIB_SRC)/regionFaModels/lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \
diff --git a/applications/solvers/heatTransfer/buoyantPimpleFoam/Make/options b/applications/solvers/heatTransfer/buoyantPimpleFoam/Make/options
index badebdc5ab..7dfc42ef22 100644
--- a/applications/solvers/heatTransfer/buoyantPimpleFoam/Make/options
+++ b/applications/solvers/heatTransfer/buoyantPimpleFoam/Make/options
@@ -10,7 +10,7 @@ EXE_INC = \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
     -I$(LIB_SRC)/dynamicMesh/lnInclude \
     -I$(LIB_SRC)/dynamicFvMesh/lnInclude \
-    -I$(LIB_SRC)/regionFaModels\lnInclude
+    -I$(LIB_SRC)/regionFaModels/lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \
diff --git a/applications/solvers/heatTransfer/buoyantSimpleFoam/Make/options b/applications/solvers/heatTransfer/buoyantSimpleFoam/Make/options
index da109f9260..2fb74e517e 100644
--- a/applications/solvers/heatTransfer/buoyantSimpleFoam/Make/options
+++ b/applications/solvers/heatTransfer/buoyantSimpleFoam/Make/options
@@ -7,7 +7,7 @@ EXE_INC = \
     -I$(LIB_SRC)/thermophysicalModels/radiation/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
-    -I$(LIB_SRC)/regionFaModels\lnInclude
+    -I$(LIB_SRC)/regionFaModels/lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \
diff --git a/applications/solvers/heatTransfer/chtMultiRegionFoam/Make/options b/applications/solvers/heatTransfer/chtMultiRegionFoam/Make/options
index 9f8b601014..573609559d 100644
--- a/applications/solvers/heatTransfer/chtMultiRegionFoam/Make/options
+++ b/applications/solvers/heatTransfer/chtMultiRegionFoam/Make/options
@@ -19,7 +19,7 @@ EXE_INC = \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/radiation/lnInclude \
     -I$(LIB_SRC)/regionModels/regionModel/lnInclude \
-    -I$(LIB_SRC)/regionFaModels\lnInclude
+    -I$(LIB_SRC)/regionFaModels/lnInclude
 
 
 EXE_LIBS = \
diff --git a/applications/solvers/incompressible/pimpleFoam/Make/options b/applications/solvers/incompressible/pimpleFoam/Make/options
index 2525075dd7..6e56975546 100644
--- a/applications/solvers/incompressible/pimpleFoam/Make/options
+++ b/applications/solvers/incompressible/pimpleFoam/Make/options
@@ -8,7 +8,7 @@ EXE_INC = \
     -I$(LIB_SRC)/transportModels/incompressible/singlePhaseTransportModel \
     -I$(LIB_SRC)/dynamicMesh/lnInclude \
     -I$(LIB_SRC)/dynamicFvMesh/lnInclude \
-    -I$(LIB_SRC)/regionFaModels\lnInclude
+    -I$(LIB_SRC)/regionFaModels/lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \