diff --git a/src/detection/cpu/cpu_windows.c b/src/detection/cpu/cpu_windows.c
index 4b814ca2f..8c9246d2f 100644
--- a/src/detection/cpu/cpu_windows.c
+++ b/src/detection/cpu/cpu_windows.c
@@ -7,7 +7,8 @@ const char* ffDetectCPUImpl(FF_MAYBE_UNUSED const FFinstance* instance, const FF
 {
     {
         DWORD length = 0;
-        if (GetLogicalProcessorInformationEx(RelationAll, NULL, &length) != ERROR_INSUFFICIENT_BUFFER)
+        GetLogicalProcessorInformationEx(RelationAll, NULL, &length);
+        if (length == 0)
             return "GetLogicalProcessorInformationEx(RelationAll, NULL, &length) failed";
 
         SYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX* FF_AUTO_FREE
diff --git a/src/modules/cpu/cpu.c b/src/modules/cpu/cpu.c
index 6fc3104bb..c8cc7a452 100644
--- a/src/modules/cpu/cpu.c
+++ b/src/modules/cpu/cpu.c
@@ -14,9 +14,13 @@ void ffPrintCPU(FFinstance* instance, FFCPUOptions* options)
     ffStrbufInit(&cpu.name);
     ffStrbufInit(&cpu.vendor);
 
-    ffDetectCPU(instance, options, &cpu);
+    const char* error = ffDetectCPU(instance, options, &cpu);
 
-    if(cpu.vendor.length == 0 && cpu.name.length == 0 && cpu.coresOnline <= 1)
+    if(error)
+    {
+        ffPrintError(instance, FF_CPU_MODULE_NAME, 0, &options->moduleArgs, "%s", error);
+    }
+    else if(cpu.vendor.length == 0 && cpu.name.length == 0 && cpu.coresOnline <= 1)
     {
         ffPrintError(instance, FF_CPU_MODULE_NAME, 0, &options->moduleArgs, "No CPU detected");
     }