diff --git a/modules/database/src/ioc/db/dbLock.c b/modules/database/src/ioc/db/dbLock.c
index 8ddb5dfc8..9a6b9efea 100644
--- a/modules/database/src/ioc/db/dbLock.c
+++ b/modules/database/src/ioc/db/dbLock.c
@@ -869,7 +869,7 @@ nosplit:
     }
 }
 
-static char *msstring[4]={"NMS","MS","MSI","MSS"};
+static const char *msstring[4]={"NMS","MS","MSI","MSS"};
 
 long dblsr(char *recordname,int level)
 {
diff --git a/modules/database/src/ioc/dbStatic/dbStaticLib.c b/modules/database/src/ioc/dbStatic/dbStaticLib.c
index 19e154956..eb008fb87 100644
--- a/modules/database/src/ioc/dbStatic/dbStaticLib.c
+++ b/modules/database/src/ioc/dbStatic/dbStaticLib.c
@@ -57,10 +57,10 @@ static char *pNullString = "";
  */
 STATIC_ASSERT(messagesize >= 21);
 
-static char *ppstring[5]={" NPP"," PP"," CA"," CP"," CPP"};
-static char *msstring[4]={" NMS"," MS"," MSI"," MSS"};
+static const char *ppstring[5]={" NPP"," PP"," CA"," CP"," CPP"};
+static const char *msstring[4]={" NMS"," MS"," MSI"," MSS"};
 
-maplinkType pamaplinkType[LINK_NTYPES] = {
+const maplinkType pamaplinkType[LINK_NTYPES] = {
     {"CONSTANT",CONSTANT},
     {"PV_LINK",PV_LINK},
     {"VME_IO",VME_IO},
diff --git a/modules/database/src/ioc/dbStatic/link.h b/modules/database/src/ioc/dbStatic/link.h
index 74607a1b1..a7edebf57 100644
--- a/modules/database/src/ioc/dbStatic/link.h
+++ b/modules/database/src/ioc/dbStatic/link.h
@@ -43,11 +43,11 @@ extern "C" {
 #define VXI_IO          15
 #define LINK_NTYPES 16
 typedef struct maplinkType {
-    char *strvalue;
+    const char *strvalue;
     int  value;
 } maplinkType;
 
-DBCORE_API extern maplinkType pamaplinkType[];
+DBCORE_API extern const maplinkType pamaplinkType[LINK_NTYPES];
 
 #define VXIDYNAMIC      0
 #define VXISTATIC       1