diff --git a/src/detection/cpucache/cpucache_apple.c b/src/detection/cpucache/cpucache_apple.c
index b0e315a14..cacb85df6 100644
--- a/src/detection/cpucache/cpucache_apple.c
+++ b/src/detection/cpucache/cpucache_apple.c
@@ -9,7 +9,7 @@ const char* ffDetectCPUCache(FFCPUCacheResult* result)
     if (nPerfLevels <= 0) return "sysctl(hw.nperflevels) failed";
 
     // macOS provides the global system cache line size
-    uint32_t lineSize = (uint32_t) ffSysctlGetInt("hw.cachelinesize", 0);
+    uint32_t lineSize = (uint32_t) ffSysctlGetInt64("hw.cachelinesize", 0);
 
     char sysctlKey[128] = "hw.perflevelN.";
     char* pNum = sysctlKey + strlen("hw.perflevel");