diff --git a/src/zr/config.inc b/src/zr/config.inc
index 10d3b44..36aaa95 100644
--- a/src/zr/config.inc
+++ b/src/zr/config.inc
@@ -93,11 +93,11 @@ ConfigLoad()
  * @param file  The cvar define of the path to the file.
  * @return      True if the file exists, false if not.
  */
-bool:ConfigGetFilePath(CvarsList:cvar, String:path[])
+bool:ConfigGetFilePath(CvarsList:cvar, String:path[] = "")
 {
     // Get cvar's path.
     decl String:filepath[PLATFORM_MAX_PATH];
-    GetConVarString(g_hCvarsList[cvar], filepath, sizeof(filepath));
+    GetConVarString(Handle:g_hCvarsList[cvar], filepath, sizeof(filepath));
     
     // Build full path in return string.
     BuildPath(Path_SM, path, PLATFORM_MAX_PATH, filepath);
@@ -316,7 +316,7 @@ bool:ConfigSettingToBool(const String:option[])
  * @param option    Variable to store "yes" or "no" in.
  * @param maxlen    Max length of return string, (can't be more than 4)
  */
-ConfigBoolToSetting(bool:bOption, String:option[], maxlen)
+ConfigBoolToSetting(bool:bOption, String:option[] = "", maxlen)
 {
     // If option is true, then copy "yes" to return string.
     if (bOption)
diff --git a/src/zr/playerclasses/attributes.inc b/src/zr/playerclasses/attributes.inc
index f0d7fe4..c1b9c5a 100644
--- a/src/zr/playerclasses/attributes.inc
+++ b/src/zr/playerclasses/attributes.inc
@@ -130,7 +130,7 @@ bool:ClassGetTeamDefault(index, cachetype = ZR_CLASS_CACHE_MODIFIED)
  *                  is used, index will be used as a client index.
  * @return          Number of cells written. -1 on error.
  */
-ClassGetName(index, String:buffer[], maxlen, cachetype = ZR_CLASS_CACHE_PLAYER)
+ClassGetName(index, String:buffer[] = "", maxlen, cachetype = ZR_CLASS_CACHE_PLAYER)
 {
     switch (cachetype)
     {
@@ -165,7 +165,7 @@ ClassGetName(index, String:buffer[], maxlen, cachetype = ZR_CLASS_CACHE_PLAYER)
  *                  is used, index will be used as a client index.
  * @return  Number of cells written. -1 on error.
  */
-ClassGetDescription(index, String:buffer[], maxlen, cachetype = ZR_CLASS_CACHE_PLAYER)
+ClassGetDescription(index, String:buffer[] = "", maxlen, cachetype = ZR_CLASS_CACHE_PLAYER)
 {
     switch (cachetype)
     {
@@ -209,7 +209,7 @@ ClassGetDescription(index, String:buffer[], maxlen, cachetype = ZR_CLASS_CACHE_P
  *                  is used, index will be used as a client index.
  * @return  Number of cells written. -1 on error.
  */
-ClassGetModelPath(index, String:buffer[], maxlen, cachetype = ZR_CLASS_CACHE_PLAYER)
+ClassGetModelPath(index, String:buffer[] = "", maxlen, cachetype = ZR_CLASS_CACHE_PLAYER)
 {
     switch (cachetype)
     {
@@ -351,7 +351,7 @@ ClassGetAlphaDamage(index, cachetype = ZR_CLASS_CACHE_PLAYER)
  *                  is used, index will be used as a client index.
  * @return  Number of cells written. -1 on error.
  */
-ClassGetOverlayPath(index, String:buffer[], maxlen, cachetype = ZR_CLASS_CACHE_PLAYER)
+ClassGetOverlayPath(index, String:buffer[] = "", maxlen, cachetype = ZR_CLASS_CACHE_PLAYER)
 {
     switch (cachetype)
     {
diff --git a/src/zr/playerclasses/playerclasses.inc b/src/zr/playerclasses/playerclasses.inc
index f46785b..97ca9dd 100644
--- a/src/zr/playerclasses/playerclasses.inc
+++ b/src/zr/playerclasses/playerclasses.inc
@@ -688,7 +688,7 @@ ClassClientSetDefaultIndexes(client = -1)
  *                  index will be used as a client index.
  * @return          Number of cells written.
  */
-ClassDumpData(index, cachetype, String:buffer[], maxlen)
+ClassDumpData(index, cachetype, String:buffer[] = "", maxlen)
 {
     new cellcount;
     decl String:attribute[320];
diff --git a/src/zr/weapons/restrict.inc b/src/zr/weapons/restrict.inc
index b3cac08..2ac84b9 100644
--- a/src/zr/weapons/restrict.inc
+++ b/src/zr/weapons/restrict.inc
@@ -827,7 +827,7 @@ RestrictCreateGroupWeaponsArray(&Handle:arrayGroupWeapons, const String:weapongr
  * @param maxlen        Maximum length of the weapon list, the rest is truncated.
  * @param separator     Separator character between weapon names. 
  */
-RestrictGetGroupWeapons(const String:groupname[], String:weaponlist[], maxlen, const String:separator[])
+RestrictGetGroupWeapons(const String:groupname[], String:weaponlist[] = "", maxlen, const String:separator[])
 {
     KvRewind(kvWeaponGroups);
     KvJumpToKey(kvWeaponGroups, groupname);
diff --git a/src/zr/weapons/weapons.inc b/src/zr/weapons/weapons.inc
index bb479fd..c07bb8f 100644
--- a/src/zr/weapons/weapons.inc
+++ b/src/zr/weapons/weapons.inc
@@ -218,7 +218,7 @@ bool:WeaponsIsValidWeapon(const String:weapon[])
  * @param weapon    The weapon name.
  * @param display   Returns with the display name, is not changed if weapon is invalid. 
  */
-WeaponGetDisplayName(const String:weapon[], String:display[])
+WeaponGetDisplayName(const String:weapon[], String:display[] = "")
 {
     // Reset keyvalue's traversal stack.
     KvRewind(kvWeapons);