diff --git a/Fw/Types/Assert.cpp b/Fw/Types/Assert.cpp
index 046ccd8782..173beff3fc 100644
--- a/Fw/Types/Assert.cpp
+++ b/Fw/Types/Assert.cpp
@@ -10,9 +10,9 @@
 #else
 
 #if FW_ASSERT_LEVEL == FW_FILEID_ASSERT
-#define fileIdFs "Assert file ID 0x%08" PRIx32 ": Line: %" PRI_PlatformUIntType
+#define fileIdFs "Assert file ID 0x%08" PRIx32 ": Line: %" PRI_PlatformUIntType " "
 #else
-#define fileIdFs "Assert file \"%s\": Line: %" PRI_PlatformUIntType
+#define fileIdFs "Assert file \"%s\": Line: %" PRI_PlatformUIntType " "
 #endif
 
 namespace Fw {
diff --git a/cmake/platform/types/PlatformTypes.hpp b/cmake/platform/types/PlatformTypes.hpp
index 4c4b3a5bd9..cc120cfdf7 100644
--- a/cmake/platform/types/PlatformTypes.hpp
+++ b/cmake/platform/types/PlatformTypes.hpp
@@ -52,7 +52,7 @@ typedef int PlatformIntType;
 #define PRI_PlatformIntType "d"
 
 typedef unsigned int PlatformUIntType;
-#define PRI_PlatformUIntType "ud"
+#define PRI_PlatformUIntType "u"
 
 typedef PlatformIntType PlatformIndexType;
 #define PRI_PlatformIndexType PRI_PlatformIntType