diff --git a/mailnews/addrbook/src/nsAbBSDirectory.cpp b/mailnews/addrbook/src/nsAbBSDirectory.cpp
index 199889382c1..0a0c86a2a88 100644
--- a/mailnews/addrbook/src/nsAbBSDirectory.cpp
+++ b/mailnews/addrbook/src/nsAbBSDirectory.cpp
@@ -400,7 +400,7 @@ struct GetDirectories
 		DIR_Server* mServer;
 };
 
-PRBool GetDirectories_getDirectory (nsHashKey *aKey, void *aData, void* closure)
+PRBool PR_CALLBACK GetDirectories_getDirectory (nsHashKey *aKey, void *aData, void* closure)
 {
 	GetDirectories* getDirectories = (GetDirectories* )closure;
 
diff --git a/mailnews/addrbook/src/nsAbUtils.cpp b/mailnews/addrbook/src/nsAbUtils.cpp
index 0a202660585..669397f2c3a 100644
--- a/mailnews/addrbook/src/nsAbUtils.cpp
+++ b/mailnews/addrbook/src/nsAbUtils.cpp
@@ -182,7 +182,7 @@ struct closureStruct
  * into the associated position of the key and
  * value arrays
  */
-static PRBool enumerateEntries(nsHashKey *aKey, void *aData, void* closure)
+PR_STATIC_CALLBACK(PRBool) enumerateEntries(nsHashKey *aKey, void *aData, void* closure)
 {
     closureStruct* s  = NS_REINTERPRET_CAST(closureStruct*, closure);
     nsCStringKey* key = NS_REINTERPRET_CAST(nsCStringKey*, aKey);