diff --git a/src/cpu/cpu.c b/src/cpu/cpu.c
index 5da0778ab..e29bca7d5 100644
--- a/src/cpu/cpu.c
+++ b/src/cpu/cpu.c
@@ -381,7 +381,7 @@ cpu_set(void)
        and the WinChip datasheet claims those are Pentium-compatible as well. AMD Am486DXL/DXL2 also has compatible SMM, or would if not for it's different SMBase*/
     is_pentium   = (cpu_isintel && (cpu_s->cpu_type >= CPU_i486SX_SLENH) && (cpu_s->cpu_type < CPU_PENTIUMPRO)) ||
 		   !strcmp(cpu_f->manufacturer, "IDT") || (cpu_s->cpu_type == CPU_Am486DXL);
-    is_k5        = !strcmp(cpu_f->manufacturer, "AMD") && (cpu_s->cpu_type > CPU_ENH_Am486DX);
+    is_k5        = !strcmp(cpu_f->manufacturer, "AMD") && (cpu_s->cpu_type > CPU_ENH_Am486DX) && (cpu_s->cpu_type < CPU_K6);
     is_k6        = (cpu_s->cpu_type >= CPU_K6) && !strcmp(cpu_f->manufacturer, "AMD");
     /* The Samuel 2 datasheet claims it's Celeron-compatible. */
     is_p6        = (cpu_isintel && (cpu_s->cpu_type >= CPU_PENTIUMPRO)) || !strcmp(cpu_f->manufacturer, "VIA");