diff --git a/applications/solvers/compressible/rhoPimpleFoam/Make/options b/applications/solvers/compressible/rhoPimpleFoam/Make/options
index 9450f8d2b0..cdf8b2a4c6 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 e2de7b9c0e..073406498d 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 dd183fe022..128034e6f8 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 c0dc52dba0..1780cf51aa 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 95fff6059e..124e0e5850 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 05f18df063..7d728a22d5 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 \