diff --git a/src/lib/nbt.cpp b/src/lib/nbt.cpp
index 5ede937..3ae13aa 100644
--- a/src/lib/nbt.cpp
+++ b/src/lib/nbt.cpp
@@ -86,6 +86,8 @@ namespace NBT {
                     *(valueAsBytes+1) = data[currentPosition+2];
                     *(valueAsBytes+2) = data[currentPosition+1];
                     *(valueAsBytes+3) = data[currentPosition];
+                #else
+                    #error "NBT::helper::readFloat32: An implementation for your endianness is unavailable."
                 #endif
             #endif
             float dereferencedValue = *value;
@@ -120,6 +122,8 @@ namespace NBT {
                     *(valueAsBytes+5) = data[currentPosition+2];
                     *(valueAsBytes+6) = data[currentPosition+1];
                     *(valueAsBytes+7) = data[currentPosition];
+                #else
+                    #error "NBT::helper::readFloat64: An implementation for your endianness is unavailable."
                 #endif
             #endif
             double dereferencedValue = *value;