diff --git a/libavutil/aarch64/cpu.c b/libavutil/aarch64/cpu.c
index f5f5e99661..6d70c97fd0 100644
--- a/libavutil/aarch64/cpu.c
+++ b/libavutil/aarch64/cpu.c
@@ -135,11 +135,8 @@ static int detect_flags(void)
     if (IsProcessorFeaturePresent(PF_ARM_V82_DP_INSTRUCTIONS_AVAILABLE))
         flags |= AV_CPU_FLAG_DOTPROD;
 #endif
-#ifdef PF_ARM_SVE_I8MM_INSTRUCTIONS_AVAILABLE
-    /* There's no PF_* flag that indicates whether plain I8MM is available
-     * or not. But if SVE_I8MM is available, that also implies that
-     * regular I8MM is available. */
-    if (IsProcessorFeaturePresent(PF_ARM_SVE_I8MM_INSTRUCTIONS_AVAILABLE))
+#ifdef PF_ARM_V82_I8MM_INSTRUCTIONS_AVAILABLE
+    if (IsProcessorFeaturePresent(PF_ARM_V82_I8MM_INSTRUCTIONS_AVAILABLE))
         flags |= AV_CPU_FLAG_I8MM;
 #endif
 #ifdef PF_ARM_SVE_INSTRUCTIONS_AVAILABLE