diff --git a/fast64_internal/sm64/animation/classes.py b/fast64_internal/sm64/animation/classes.py
index d11f612b6..cac8e9810 100644
--- a/fast64_internal/sm64/animation/classes.py
+++ b/fast64_internal/sm64/animation/classes.py
@@ -115,7 +115,7 @@ def read_binary(self, indices_reader: RomReader, values_reader: RomReader, bone_
         indices_values = np.frombuffer(indices_reader.read_data(indices_size), dtype=">u2")
         for i in range(0, len(indices_values), 2):
             max_frame, offset = indices_values[i], indices_values[i + 1]
-            address, size = values_reader.start_address + (offset * 2), max_frame * 2
+            address, size = values_reader.start_address + int(offset * 2), int(max_frame) * 2
 
             values = np.frombuffer(values_reader.read_data(size, address), dtype=">i2", count=max_frame)
             self.pairs.append(SM64_AnimPair(values, address, address + size, offset).clean_frames())
diff --git a/fast64_internal/utility.py b/fast64_internal/utility.py
index 7874eacd9..cccd9bea2 100644
--- a/fast64_internal/utility.py
+++ b/fast64_internal/utility.py
@@ -1438,6 +1438,7 @@ def bytesToHexClean(value, byteSize=4):
 
 
 def intToHex(value, byte_size=4, signed=True):
+    value = int(value)
     return format(value if signed else cast_integer(value, byte_size * 8, False), f"#0{(byte_size * 2 + 2)}x")