diff --git a/src/field_10x26_impl.h b/src/field_10x26_impl.h
index d840825c3f461..4ae4fdcec884c 100644
--- a/src/field_10x26_impl.h
+++ b/src/field_10x26_impl.h
@@ -8,7 +8,6 @@
 #define SECP256K1_FIELD_REPR_IMPL_H
 
 #include "util.h"
-#include "num.h"
 #include "field.h"
 
 #ifdef VERIFY
diff --git a/src/field_5x52_impl.h b/src/field_5x52_impl.h
index 60112b7e09f26..f4263320d5100 100644
--- a/src/field_5x52_impl.h
+++ b/src/field_5x52_impl.h
@@ -12,7 +12,6 @@
 #endif
 
 #include "util.h"
-#include "num.h"
 #include "field.h"
 
 #if defined(USE_ASM_X86_64)
diff --git a/src/field_impl.h b/src/field_impl.h
index 20428648af312..f9f0a1c775a56 100644
--- a/src/field_impl.h
+++ b/src/field_impl.h
@@ -12,6 +12,7 @@
 #endif
 
 #include "util.h"
+#include "num.h"
 
 #if defined(USE_FIELD_10X26)
 #include "field_10x26_impl.h"