diff --git a/src/p_acs.cpp b/src/p_acs.cpp
index eccfb48af..e2fccad14 100644
--- a/src/p_acs.cpp
+++ b/src/p_acs.cpp
@@ -2367,7 +2367,7 @@ void FBehavior::SerializeVarSet (FSerializer &arc, int32_t *vars, int max)
 
 static int ParseLocalArrayChunk(void *chunk, ACSLocalArrays *arrays, int offset)
 {
-	unsigned count = (LittleShort(static_cast<unsigned short>(((unsigned *)chunk)[1]) - 2)) / 4;
+	unsigned count = LittleShort(static_cast<unsigned short>(((unsigned *)chunk)[1] - 2)) / 4;
 	int *sizes = (int *)((uint8_t *)chunk + 10);
 	arrays->Count = count;
 	if (count > 0)