diff --git a/src/common/cpu.c b/src/common/cpu.c
index 2f239d99d..7988cb4c1 100644
--- a/src/common/cpu.c
+++ b/src/common/cpu.c
@@ -151,7 +151,7 @@ const unsigned CPUIsets[CPU_COUNT] = {
      CAP_BIT (CAP_CPU_HAS_PUSHXY))
 
 /* Table containing one capability entry per CPU */
-static const uint64_t CPUCaps[CPU_COUNT] = {
+static const uint32_t CPUCaps[CPU_COUNT] = {
     CAP_NONE,                   /* CPU_NONE */
     CAP_6502,                   /* CPU_6502 */
     CAP_6502X,                  /* CPU_6502X */