diff --git a/configure.ac b/configure.ac
index cb9673fe55437..8a4e9828b3d0c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -622,7 +622,7 @@ if test x$bitcoin_enable_qt != xno; then
   if test x$use_tests = xyes; then
     BUILD_TEST_QT="test"
     if test x$bitcoin_enable_qt_test != xyes; then
-      AC_MSG_ERROR("QT Test lib not found. Use --disable-tests or --without-qt.")
+      AC_MSG_ERROR("Qt Test lib not found. Use --disable-tests or --without-qt.")
     fi
   fi
 fi
diff --git a/src/m4/bitcoin_qt.m4 b/src/m4/bitcoin_qt.m4
index 758aea3499e98..f65e15848c0a7 100644
--- a/src/m4/bitcoin_qt.m4
+++ b/src/m4/bitcoin_qt.m4
@@ -22,7 +22,7 @@ AC_DEFUN([BITCOIN_QT_CHECK],[
 ])
 
 dnl BITCOIN_QT_PATH_PROGS([FOO], [foo foo2], [/path/to/search/first], [continue if missing])
-dnl Helper for finding the path of programs needed for QT.
+dnl Helper for finding the path of programs needed for Qt.
 dnl Inputs: $1: Variable to be set
 dnl Inputs: $2: List of programs to search for
 dnl Inputs: $3: Look for $2 here before $PATH
@@ -113,7 +113,7 @@ AC_DEFUN([BITCOIN_QT_CONFIGURE],[
 
 
   dnl enable qt support
-  AC_MSG_CHECKING(if QT should be enabled)
+  AC_MSG_CHECKING(if Qt should be enabled)
   BITCOIN_QT_CHECK([
     bitcoin_enable_qt=yes
     bitcoin_enable_qt_test=yes
@@ -149,11 +149,11 @@ dnl All macros below are internal and should _not_ be used from the main
 dnl configure.ac.
 dnl ----
 
-dnl Internal. Check if the included version of QT is Qt5.
+dnl Internal. Check if the included version of Qt is Qt5.
 dnl Requires: INCLUDES must be populated as necessary.
 dnl Output: bitcoin_cv_qt5=yes|no
 AC_DEFUN([_BITCOIN_QT_CHECK_QT5],[
-  AC_CACHE_CHECK(for QT 5, bitcoin_cv_qt5,[
+  AC_CACHE_CHECK(for Qt 5, bitcoin_cv_qt5,[
   AC_TRY_COMPILE(
     [#include <QtCore>],
     [
@@ -167,13 +167,13 @@ AC_DEFUN([_BITCOIN_QT_CHECK_QT5],[
     bitcoin_cv_qt5=no)
 ])])
 
-dnl Internal. Check if the linked version of QT was built as static libs.
+dnl Internal. Check if the linked version of Qt was built as static libs.
 dnl Requires: Qt5. This check cannot determine if Qt4 is static.
 dnl Requires: INCLUDES and LIBS must be populated as necessary.
 dnl Output: bitcoin_cv_static_qt=yes|no
 dnl Output: Defines QT_STATICPLUGIN if plugins are static.
 AC_DEFUN([_BITCOIN_QT_IS_STATIC],[
-  AC_CACHE_CHECK(for static QT, bitcoin_cv_static_qt,[
+  AC_CACHE_CHECK(for static Qt, bitcoin_cv_static_qt,[
   AC_TRY_COMPILE(
     [#include <QtCore>],
     [
@@ -187,7 +187,7 @@ AC_DEFUN([_BITCOIN_QT_IS_STATIC],[
     [bitcoin_cv_static_qt=no])
   ])
   if test xbitcoin_cv_static_qt = xyes; then
-    AC_DEFINE(QT_STATICPLUGIN, 1, [Define this symbol for static QT plugins])
+    AC_DEFINE(QT_STATICPLUGIN, 1, [Define this symbol for static Qt plugins])
   fi
 ])
 
@@ -197,7 +197,7 @@ dnl Inputs: $1: A series of Q_IMPORT_PLUGIN().
 dnl Inputs: $2: The libraries that resolve $1.
 dnl Output: QT_LIBS is prepended or configure exits.
 AC_DEFUN([_BITCOIN_QT_CHECK_STATIC_PLUGINS],[
-  AC_MSG_CHECKING(for static QT plugins: $2)
+  AC_MSG_CHECKING(for static Qt plugins: $2)
   CHECK_STATIC_PLUGINS_TEMP_LIBS="$LIBS"
   LIBS="$2 $QT_LIBS $LIBS"
   AC_TRY_LINK([