diff --git a/test_conformance/printf/test_printf.h b/test_conformance/printf/test_printf.h
index 7e5156a2..ad1e08fb 100644
--- a/test_conformance/printf/test_printf.h
+++ b/test_conformance/printf/test_printf.h
@@ -81,7 +81,6 @@ struct printDataGenParameters
 
 // Reference results - filled out at run-time
 static std::vector<std::string> correctBufferInt;
-static std::vector<std::string> correctBufferLong;
 static std::vector<std::string> correctBufferHalf;
 static std::vector<std::string> correctBufferFloat;
 static std::vector<std::string> correctBufferDouble;
diff --git a/test_conformance/printf/util_printf.cpp b/test_conformance/printf/util_printf.cpp
index 82183edb..4584b8cc 100644
--- a/test_conformance/printf/util_printf.cpp
+++ b/test_conformance/printf/util_printf.cpp
@@ -23,7 +23,6 @@
 
 // Helpers for generating runtime reference results
 static void intRefBuilder(printDataGenParameters&, char*, const size_t);
-static void longRefBuilder(printDataGenParameters&, char*, const size_t);
 static void halfRefBuilder(printDataGenParameters&, char* rResult,
                            const size_t);
 static void floatRefBuilder(printDataGenParameters&, char* rResult, const size_t);
@@ -158,6 +157,33 @@ std::vector<printDataGenParameters> printLongGenParameters = {
 
 };
 
+//--------------------------------------------------------
+
+//  Lookup table - [string]long-correct buffer             |
+
+//--------------------------------------------------------
+
+// The table below is used to accommodate differences in `printf` output when
+// using the `%ld` format specifier in 32-bit versus 64-bit compiled binaries
+
+std::vector<std::string> correctBufferLong = {
+
+    "10000000000",
+
+    "-10000000000   ",
+
+    "000010000000000",
+
+    "   -10000000000",
+
+    "+10000000000   ",
+
+    "000010000000000",
+
+    "-000010000000000"
+
+};
+
 //-----------------------------------------------
 
 // test case for long                             |
@@ -172,7 +198,7 @@ testCase testCaseLong = {
 
     printLongGenParameters,
 
-    longRefBuilder,
+    NULL,
 
     klong
 
@@ -1594,13 +1620,6 @@ static void intRefBuilder(printDataGenParameters& params, char* refResult, const
              atoi(params.dataRepresentation));
 }
 
-static void longRefBuilder(printDataGenParameters& params, char* refResult,
-                           const size_t refSize)
-{
-    snprintf(refResult, refSize, params.genericFormats.front().c_str(),
-             atoll(params.dataRepresentation));
-}
-
 static void halfRefBuilder(printDataGenParameters& params, char* refResult,
                            const size_t refSize)
 {