diff --git a/Source/cmExecProgramCommand.h b/Source/cmExecProgramCommand.h
index 3c79185c2..6a312ca34 100644
--- a/Source/cmExecProgramCommand.h
+++ b/Source/cmExecProgramCommand.h
@@ -88,7 +88,7 @@ public:
   virtual const char* GetFullDocumentation()
     {
     return
-      "EXEC_PROGRAM(Executble [Directory to run in])";
+      "EXEC_PROGRAM(Executable [Directory to run in])";
     }
   
   cmTypeMacro(cmExecProgramCommand, cmCommand);
diff --git a/Source/cmVariableRequiresCommand.h b/Source/cmVariableRequiresCommand.h
index ca3d66f04..03f37ab12 100644
--- a/Source/cmVariableRequiresCommand.h
+++ b/Source/cmVariableRequiresCommand.h
@@ -86,7 +86,7 @@ public:
   virtual const char* GetFullDocumentation()
     {
     return
-      "VARIABLE_REQUIRES(TEST_VARIBLE RESULT_VARIBLE "
+      "VARIABLE_REQUIRES(TEST_VARIABLE RESULT_VARIABLE "
       "REQUIRED_VARIABLE1 REQUIRED_VARIABLE2 ...) "
       "The first argument (TEST_VARIABLE) is the name of the varible to be "
       "tested, if that varible is false nothing else is done. If "