diff --git a/CMakeLists.txt b/CMakeLists.txt
index a819a61b5a..0b301da77d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -692,14 +692,6 @@ install(FILES ${gnucash_DOCS} DESTINATION ${CMAKE_INSTALL_DOCDIR})
 
 # Create config.h
 
-if (WIN32)
-  if (MINGW)
-    set (HAVE_SCANF_LLD 1)
-  else ()
-    set (HAVE_SCANF_I64D 1)
-  endif()
-endif()
-
 check_include_files (dirent.h HAVE_DIRENT_H)
 check_include_files (dlfcn.h HAVE_DLFCN_H)
 check_include_files (glob.h HAVE_GLOB_H)
@@ -764,7 +756,6 @@ set (HAVE_LINK 1)
 set (HAVE_LOCALTIME_R 1)
 set (HAVE_PTHREAD_MUTEX_INIT 1)
 set (HAVE_PTHREAD_PRIO_INHERIT 1)
-set (HAVE_SCANF_LLD 1)
 set (HAVE_SETENV 1)
 set (HAVE_STPCPY 1)
 set (HAVE_STRPTIME 1)
diff --git a/common/config.h.cmake.in b/common/config.h.cmake.in
index 5f70f809c6..c1dbec0866 100644
--- a/common/config.h.cmake.in
+++ b/common/config.h.cmake.in
@@ -153,15 +153,6 @@
 /* If available, contains the Python version number currently in use. */
 #cmakedefine HAVE_PYTHON 1
 
-/* Define if scanf supports %I64d conversions. */
-#cmakedefine HAVE_SCANF_I64D 1
-
-/* Define if scanf supports %lld conversions. */
-#cmakedefine HAVE_SCANF_LLD 1
-
-/* Define if scanf supports %qd conversions. */
-#cmakedefine HAVE_SCANF_QD 1
-
 /* Define to 1 if you have the `setenv' function. */
 #cmakedefine HAVE_SETENV 1
 
diff --git a/libgnucash/app-utils/gnc-ui-util.c b/libgnucash/app-utils/gnc-ui-util.c
index a8de2e4084..025b9b6e21 100644
--- a/libgnucash/app-utils/gnc-ui-util.c
+++ b/libgnucash/app-utils/gnc-ui-util.c
@@ -1935,7 +1935,7 @@ xaccParseAmountInternal (const char * in_str, gboolean monetary,
         {
             *out = '\0';
 
-            if (*out_str && sscanf(out_str, QOF_SCANF_LLD, &numer) < 1)
+            if (*out_str && sscanf(out_str, "%lld", &numer) < 1)
                 next_state = NO_NUM_ST;
             else if (next_state == FRAC_ST)
             {
@@ -1977,7 +1977,7 @@ xaccParseAmountInternal (const char * in_str, gboolean monetary,
         }
 
         long long int fraction;
-        if (sscanf (out_str, QOF_SCANF_LLD, &fraction) < 1)
+        if (sscanf (out_str, "%lld", &fraction) < 1)
         {
             g_free(out_str);
             return FALSE;
diff --git a/libgnucash/backend/xml/sixtp-utils.cpp b/libgnucash/backend/xml/sixtp-utils.cpp
index 3da4b1f121..0cf032b6ca 100644
--- a/libgnucash/backend/xml/sixtp-utils.cpp
+++ b/libgnucash/backend/xml/sixtp-utils.cpp
@@ -171,7 +171,7 @@ string_to_gint64 (const gchar* str, gint64* v)
     g_return_val_if_fail (str, FALSE);
 
     /* must use "<" here because %n's effects aren't well defined */
-    if (sscanf (str, " " QOF_SCANF_LLD "%n", &v_in, &num_read) < 1)
+    if (sscanf (str, " %lld%n", &v_in, &num_read) < 1)
     {
         return (FALSE);
     }
diff --git a/libgnucash/engine/qofutil.h b/libgnucash/engine/qofutil.h
index ddbd39d2f0..579650e63f 100644
--- a/libgnucash/engine/qofutil.h
+++ b/libgnucash/engine/qofutil.h
@@ -45,21 +45,6 @@ extern "C"
 {
 #endif
 
-/** Do not use these for printf, only scanf */
-#if HAVE_SCANF_LLD
-# define QOF_SCANF_LLD "%lld"
-#else
-# if HAVE_SCANF_QD
-#  define QOF_SCANF_LLD "%qd"
-# else
-#  if HAVE_SCANF_I64D
-#   define QOF_SCANF_LLD "%I64d"
-#  else
-#   error "No scanf format string is known for LLD. Fix your ./configure so that the correct one is detected!"
-#  endif
-# endif
-#endif
-
 #define QOF_MOD_UTIL "qof.utilities"
 
 /** \name typedef enum as string macros