diff --git a/MPC/modules/IDLBase.pm b/MPC/modules/IDLBase.pm
index 00b93eae56a..b7a51eac637 100644
--- a/MPC/modules/IDLBase.pm
+++ b/MPC/modules/IDLBase.pm
@@ -118,7 +118,7 @@ sub do_cached_parse {
   my %macros = (
     __OPENDDS_IDL => 1,
     __OPENDDS_MPC => 1,
-    OPENDDS_HIDE_DYNMIC_DATA => 1,
+    OPENDDS_HIDE_DYNAMIC_DATA => 1,
   );
   my %mparams;
   my @include;
diff --git a/dds/DdsDynamicData.idl b/dds/DdsDynamicData.idl
index f4035b93289..78011fda347 100644
--- a/dds/DdsDynamicData.idl
+++ b/dds/DdsDynamicData.idl
@@ -7,15 +7,15 @@
 #define OPENDDS_DDS_DYNAMIC_DATA_IDL
 
 #ifndef OPENDDS_SAFETY_PROFILE
-#  ifndef OPENDDS_HIDE_DYNMIC_DATA
+#  ifndef OPENDDS_HIDE_DYNAMIC_DATA
 #    include <dds/DdsDcpsInfrastructure.idl>
 #    include <dds/DdsDcpsDomain.idl>
 #    include <dds/DdsDynamicDataSeq.idl>
-#  endif // OPENDDS_HIDE_DYNMIC_DATA
+#  endif
 
 module DDS {
   local interface DynamicType;
-#  ifndef OPENDDS_HIDE_DYNMIC_DATA
+#  ifndef OPENDDS_HIDE_DYNAMIC_DATA
   valuetype TypeDescriptor;
 
   typedef sequence<string> IncludePathSeq;
@@ -158,11 +158,11 @@ module DDS {
 
     void clear();
   };
-#  endif // OPENDDS_HIDE_DYNMIC_DATA
+#  endif // OPENDDS_HIDE_DYNAMIC_DATA
 
   local interface DynamicData;
 
-#  ifndef OPENDDS_HIDE_DYNMIC_DATA
+#  ifndef OPENDDS_HIDE_DYNAMIC_DATA
   local interface DynamicDataFactoryInterf {
     // Implemented in C++
     // static DynamicDataFactory get_instance();
@@ -403,7 +403,7 @@ module DDS {
                                          in MemberId id,
                                          in WstringSeq value);
   }; // local interface DynamicData
-#  endif // OPENDDS_HIDE_DYNMIC_DATA
+#  endif // OPENDDS_HIDE_DYNAMIC_DATA
 };
 
 #endif // OPENDDS_SAFETY_PROFILE
diff --git a/java/idl2jni/codegen/be_init.cpp b/java/idl2jni/codegen/be_init.cpp
index 194d6ad0b44..c958bf618c1 100644
--- a/java/idl2jni/codegen/be_init.cpp
+++ b/java/idl2jni/codegen/be_init.cpp
@@ -39,7 +39,7 @@ BE_post_init(char *[], long)
   idl_global->unknown_annotations_ = IDL_GlobalData::UNKNOWN_ANNOTATIONS_IGNORE;
 
   DRV_cpp_putarg("-D__OPENDDS_IDL_HAS_ANNOTATIONS");
-  DRV_cpp_putarg("-DOPENDDS_HIDE_DYNMIC_DATA");
+  DRV_cpp_putarg("-DOPENDDS_HIDE_DYNAMIC_DATA");
 
   idl_global->eval(
     "module OpenDDS {module internal {@annotation hidden_op_in_java {string impl;};};};\n");