diff --git a/SRC/interpreter/OpenSeesNDMaterialCommands.cpp b/SRC/interpreter/OpenSeesNDMaterialCommands.cpp
index 8343679fd0..486c18300d 100644
--- a/SRC/interpreter/OpenSeesNDMaterialCommands.cpp
+++ b/SRC/interpreter/OpenSeesNDMaterialCommands.cpp
@@ -131,7 +131,7 @@ namespace {
 #endif
 	nDMaterialsMap.insert(std::make_pair("PrestressedConcretePlaneStress", &OPS_PrestressedConcretePlaneStressMaterial));
 	nDMaterialsMap.insert(std::make_pair("FAPrestressedConcretePlaneStress", &OPS_FAPrestressedConcretePlaneStressMaterial));
-	nDMaterialsMap.insert(std::make_pair("RAFourSteetPCPlaneStress", &OPS_RAFourSteelPCPlaneStressMaterial));
+	nDMaterialsMap.insert(std::make_pair("RAFourSteelPCPlaneStress", &OPS_RAFourSteelPCPlaneStressMaterial));
 	nDMaterialsMap.insert(std::make_pair("FAFourSteelPCPlaneStress", &OPS_FAFourSteelPCPlaneStressMaterial));
 	nDMaterialsMap.insert(std::make_pair("DruckerPrager", &OPS_DruckerPragerMaterial));
 	nDMaterialsMap.insert(std::make_pair("TruncatedDP", &OPS_LinearCap));
diff --git a/SRC/material/nD/TclModelBuilderNDMaterialCommand.cpp b/SRC/material/nD/TclModelBuilderNDMaterialCommand.cpp
index 4b9f4d00be..bc77164eae 100644
--- a/SRC/material/nD/TclModelBuilderNDMaterialCommand.cpp
+++ b/SRC/material/nD/TclModelBuilderNDMaterialCommand.cpp
@@ -352,7 +352,7 @@ TclModelBuilderNDMaterialCommand (ClientData clientData, Tcl_Interp *interp, int
 	return TCL_ERROR;
     }
 
-    else if ((strcmp(argv[1],"RAFourSteetPCPlaneStress") == 0)){
+    else if ((strcmp(argv[1],"RAFourSteelPCPlaneStress") == 0)){
 
       void *theMat = OPS_RAFourSteelPCPlaneStressMaterial();
       if (theMat != 0)