diff --git a/mongoose.h b/mongoose.h
index e84ea491c3..8d9823d8b0 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -127,7 +127,7 @@
 /* Amalgamated: #include "common/platforms/platform_pic32.h" */
 /* Amalgamated: #include "common/platforms/platform_stm32.h" */
 #if CS_PLATFORM == CS_P_CUSTOM
-/* Amalgamated: #include "platform_custom.h" */
+#include <platform_custom.h>
 #endif
 
 /* Common stuff */
diff --git a/src/common/platform.h b/src/common/platform.h
index d02703fc63..a6f218cecf 100644
--- a/src/common/platform.h
+++ b/src/common/platform.h
@@ -91,7 +91,7 @@
 #include "common/platforms/platform_pic32.h"
 #include "common/platforms/platform_stm32.h"
 #if CS_PLATFORM == CS_P_CUSTOM
-#include "platform_custom.h"
+#include <platform_custom.h>
 #endif
 
 /* Common stuff */