diff --git a/src/core/tools/qlocale.cpp b/src/core/tools/qlocale.cpp
index 833e961e2..2f785ff0a 100644
--- a/src/core/tools/qlocale.cpp
+++ b/src/core/tools/qlocale.cpp
@@ -1904,7 +1904,7 @@ QString QLocalePrivate::doubleToString(const QChar _zero, const QChar plus, cons
         // NOT thread safe!
         if (form == DFDecimal) {
             QSTACKARRAY(char, qfcvtbuf, QECVT_BUFFSIZE);
-            digits = QString::fromLatin1(qfcvt(d, precision, &decpt, &sign, qfcvtbuf));
+            digits = QString::fromLatin1(qFcvt(d, precision, &decpt, &sign, qfcvtbuf));
         } else {
             int pr = precision;
             if (form == DFExponent)
@@ -1912,7 +1912,7 @@ QString QLocalePrivate::doubleToString(const QChar _zero, const QChar plus, cons
             else if (form == DFSignificantDigits && pr == 0)
                 pr = 1;
             QSTACKARRAY(char, qecvtbuf, QECVT_BUFFSIZE);
-            digits = QString::fromLatin1(qecvt(d, pr, &decpt, &sign, qecvtbuf));
+            digits = QString::fromLatin1(qEcvt(d, pr, &decpt, &sign, qecvtbuf));
 
             // Chop trailing zeros
             if (digits.length() > 0) {
diff --git a/src/core/tools/qlocale_tools.cpp b/src/core/tools/qlocale_tools.cpp
index 00a31f807..10570a52f 100644
--- a/src/core/tools/qlocale_tools.cpp
+++ b/src/core/tools/qlocale_tools.cpp
@@ -323,7 +323,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 // the code bellow is copy from musl libc, modified to not use static buffer
 // and use snprintf() instead of sprintf()
-char *qfcvt(double x, int n, int *dp, int *sign, char* buf)
+char *qFcvt(double x, int n, int *dp, int *sign, char* buf)
 {
     QSTACKARRAY(char, tmp, 1500);
     int i, lz;
@@ -341,10 +341,10 @@ char *qfcvt(double x, int n, int *dp, int *sign, char* buf)
         return (char*)"000000000000000"+14-n;
     }
 
-    return qecvt(x, n-lz, dp, sign, buf);
+    return qEcvt(x, n-lz, dp, sign, buf);
 }
 
-char *qecvt(double x, int n, int *dp, int *sign, char* buf)
+char *qEcvt(double x, int n, int *dp, int *sign, char* buf)
 {
     QSTACKARRAY(char, tmp, 32);
     int i, j;
diff --git a/src/core/tools/qlocale_tools_p.h b/src/core/tools/qlocale_tools_p.h
index e2c09259b..f5d1fa745 100644
--- a/src/core/tools/qlocale_tools_p.h
+++ b/src/core/tools/qlocale_tools_p.h
@@ -101,8 +101,8 @@ bool qt_u_strToUpper(const QString &str, QString *out, const QLocale &locale);
 bool qt_u_strToLower(const QString &str, QString *out, const QLocale &locale);
 
 #define QECVT_BUFFSIZE 17
-char *qfcvt(double x, int n, int *dp, int *sign, char* buf);
-char *qecvt(double x, int n, int *dp, int *sign, char* buf);
+char *qFcvt(double x, int n, int *dp, int *sign, char* buf);
+char *qEcvt(double x, int n, int *dp, int *sign, char* buf);
 
 QT_END_NAMESPACE