diff --git a/.gitattributes b/.gitattributes
index e50acf163..f055836c9 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -2,6 +2,7 @@
 * text=auto
 
 # These are unit test files and should use crlf
+regression/targets/* eol=crlf
 *.ASC text eol=crlf
 *.asc text eol=crlf
 *.txt text eol=crlf
diff --git a/regression/targets/BESTUTMBIN.GPS.ABBREV_ASCII b/regression/targets/BESTUTMBIN.GPS.ABBREV_ASCII
index df391a966..048be2054 100644
Binary files a/regression/targets/BESTUTMBIN.GPS.ABBREV_ASCII and b/regression/targets/BESTUTMBIN.GPS.ABBREV_ASCII differ
diff --git a/regression/targets/BESTUTMBIN.GPS.ASCII b/regression/targets/BESTUTMBIN.GPS.ASCII
index 4081a22fc..3d295b877 100644
Binary files a/regression/targets/BESTUTMBIN.GPS.ASCII and b/regression/targets/BESTUTMBIN.GPS.ASCII differ
diff --git a/regression/targets/BESTUTMBIN.GPS.BINARY b/regression/targets/BESTUTMBIN.GPS.BINARY
index 3856b74a1..4d6188967 100644
Binary files a/regression/targets/BESTUTMBIN.GPS.BINARY and b/regression/targets/BESTUTMBIN.GPS.BINARY differ
diff --git a/regression/targets/BESTUTMBIN.GPS.FLATTENED_BINARY b/regression/targets/BESTUTMBIN.GPS.FLATTENED_BINARY
index 7a59573cd..850735215 100644
Binary files a/regression/targets/BESTUTMBIN.GPS.FLATTENED_BINARY and b/regression/targets/BESTUTMBIN.GPS.FLATTENED_BINARY differ
diff --git a/regression/targets/BESTUTMBIN.GPS.JSON b/regression/targets/BESTUTMBIN.GPS.JSON
index a8dca6a01..8e379b5d3 100644
Binary files a/regression/targets/BESTUTMBIN.GPS.JSON and b/regression/targets/BESTUTMBIN.GPS.JSON differ
diff --git a/src/decoders/oem/src/message_decoder.cpp b/src/decoders/oem/src/message_decoder.cpp
index 4fdd56b7d..5a1836bf7 100644
--- a/src/decoders/oem/src/message_decoder.cpp
+++ b/src/decoders/oem/src/message_decoder.cpp
@@ -44,7 +44,13 @@ void MessageDecoder::InitOemFieldMaps()
     // =========================================================
     // ASCII Field Mapping
     // =========================================================
-    asciiFieldMap[CalculateBlockCrc32("c")] = SimpleAsciiMapEntry<uint32_t>();
+    asciiFieldMap[CalculateBlockCrc32("c")] = [](std::vector<FieldContainer>& vIntermediateFormat_, const BaseField* pstMessageDataType_,
+                                                 const char** ppcToken_, [[maybe_unused]] const size_t tokenLength_,
+                                                 [[maybe_unused]] JsonReader* pclMsgDb_) {
+        // TODO: check that the character is printable
+        // if (!isprint(**ppcToken_)) { throw ... }
+        vIntermediateFormat_.emplace_back(static_cast<uint32_t>(**ppcToken_), pstMessageDataType_);
+    };
     asciiFieldMap[CalculateBlockCrc32("k")] = SimpleAsciiMapEntry<float>();
     asciiFieldMap[CalculateBlockCrc32("lk")] = SimpleAsciiMapEntry<double>();