diff --git a/mozilla/string/obsolete/nsString.cpp b/mozilla/string/obsolete/nsString.cpp
index f9cfd88b616..58f9d66b8a7 100644
--- a/mozilla/string/obsolete/nsString.cpp
+++ b/mozilla/string/obsolete/nsString.cpp
@@ -710,6 +710,8 @@ PRInt32 nsCString::ToInteger(PRInt32* anErrorCode,PRUint32 aRadix) const {
       } //switch
     }
 
+    theRadix = (kAutoDetect==aRadix) ? theRadix : aRadix;
+
       //if you don't have any valid chars, return 0, but set the error;
     if(cp<=endcp) {
 
diff --git a/mozilla/string/obsolete/nsString2.cpp b/mozilla/string/obsolete/nsString2.cpp
index 6c493207eab..cd49a01279d 100644
--- a/mozilla/string/obsolete/nsString2.cpp
+++ b/mozilla/string/obsolete/nsString2.cpp
@@ -863,6 +863,8 @@ PRInt32 nsString::ToInteger(PRInt32* anErrorCode,PRUint32 aRadix) const {
       } //switch
     }
 
+    theRadix = (kAutoDetect==aRadix) ? theRadix : aRadix;
+
       //if you don't have any valid chars, return 0, but set the error;
     if(cp<=endcp) {
 
diff --git a/mozilla/xpcom/ds/nsString.cpp b/mozilla/xpcom/ds/nsString.cpp
index f9cfd88b616..58f9d66b8a7 100644
--- a/mozilla/xpcom/ds/nsString.cpp
+++ b/mozilla/xpcom/ds/nsString.cpp
@@ -710,6 +710,8 @@ PRInt32 nsCString::ToInteger(PRInt32* anErrorCode,PRUint32 aRadix) const {
       } //switch
     }
 
+    theRadix = (kAutoDetect==aRadix) ? theRadix : aRadix;
+
       //if you don't have any valid chars, return 0, but set the error;
     if(cp<=endcp) {
 
diff --git a/mozilla/xpcom/ds/nsString2.cpp b/mozilla/xpcom/ds/nsString2.cpp
index 6c493207eab..cd49a01279d 100644
--- a/mozilla/xpcom/ds/nsString2.cpp
+++ b/mozilla/xpcom/ds/nsString2.cpp
@@ -863,6 +863,8 @@ PRInt32 nsString::ToInteger(PRInt32* anErrorCode,PRUint32 aRadix) const {
       } //switch
     }
 
+    theRadix = (kAutoDetect==aRadix) ? theRadix : aRadix;
+
       //if you don't have any valid chars, return 0, but set the error;
     if(cp<=endcp) {
 
diff --git a/mozilla/xpcom/string/obsolete/nsString.cpp b/mozilla/xpcom/string/obsolete/nsString.cpp
index f9cfd88b616..58f9d66b8a7 100644
--- a/mozilla/xpcom/string/obsolete/nsString.cpp
+++ b/mozilla/xpcom/string/obsolete/nsString.cpp
@@ -710,6 +710,8 @@ PRInt32 nsCString::ToInteger(PRInt32* anErrorCode,PRUint32 aRadix) const {
       } //switch
     }
 
+    theRadix = (kAutoDetect==aRadix) ? theRadix : aRadix;
+
       //if you don't have any valid chars, return 0, but set the error;
     if(cp<=endcp) {
 
diff --git a/mozilla/xpcom/string/obsolete/nsString2.cpp b/mozilla/xpcom/string/obsolete/nsString2.cpp
index 6c493207eab..cd49a01279d 100644
--- a/mozilla/xpcom/string/obsolete/nsString2.cpp
+++ b/mozilla/xpcom/string/obsolete/nsString2.cpp
@@ -863,6 +863,8 @@ PRInt32 nsString::ToInteger(PRInt32* anErrorCode,PRUint32 aRadix) const {
       } //switch
     }
 
+    theRadix = (kAutoDetect==aRadix) ? theRadix : aRadix;
+
       //if you don't have any valid chars, return 0, but set the error;
     if(cp<=endcp) {