diff --git a/src/common/init.c b/src/common/init.c
index ce0aa41a2..fda367f9b 100644
--- a/src/common/init.c
+++ b/src/common/init.c
@@ -49,7 +49,7 @@ static void defaultConfig(void)
 
 void ffInitInstance(void)
 {
-    #ifdef WIN32
+    #ifdef _WIN32
         // https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/setlocale-wsetlocale?source=recommendat>
         setlocale(LC_ALL, ".UTF8");
     #else
diff --git a/src/fastfetch.c b/src/fastfetch.c
index 6a742a5e7..6e7f2042b 100644
--- a/src/fastfetch.c
+++ b/src/fastfetch.c
@@ -14,7 +14,7 @@
 #include <ctype.h>
 #include <string.h>
 
-#ifdef WIN32
+#ifdef _WIN32
     #include "util/windows/getline.h"
 #endif
 
diff --git a/src/modules/cpuusage/cpuusage.c b/src/modules/cpuusage/cpuusage.c
index 8c2ffab57..d9a3ecc8c 100644
--- a/src/modules/cpuusage/cpuusage.c
+++ b/src/modules/cpuusage/cpuusage.c
@@ -28,7 +28,7 @@ bool ffPrintCPUUsage(FFCPUUsageOptions* options)
         {
             sumValue += *percent;
 
-            #if WIN32
+            #if _WIN32
             // Windows may return values greater than 100%, cap them to 100%
             if (*percent > 100) *percent = 100;
             #endif
@@ -48,7 +48,7 @@ bool ffPrintCPUUsage(FFCPUUsageOptions* options)
         ++index;
     }
     double avgValue = sumValue / (double) valueCount;
-    #if WIN32
+    #if _WIN32
     // See above comment
     if (avgValue > 100) avgValue = 100;
     #endif