diff --git a/ggml-phi-knc-dot_q5_K_q8_K.c b/ggml-phi-knc-dot_q5_K_q8_K.c
index 9104a939c..a3ff0143d 100644
--- a/ggml-phi-knc-dot_q5_K_q8_K.c
+++ b/ggml-phi-knc-dot_q5_K_q8_K.c
@@ -1,3 +1,5 @@
+// For size_t
+#include <stdint.h>
 
 /* A forward declaration, to keep GCC happy. */
 void ggml_vec_dot_q5_K_q8_K(int n, float * restrict s, size_t bs, const void * restrict vx, size_t bx, const void * restrict vy,  size_t by, int nrc);
diff --git a/ggml-phi-knc.c b/ggml-phi-knc.c
index 8001b7a84..e5e034bb8 100644
--- a/ggml-phi-knc.c
+++ b/ggml-phi-knc.c
@@ -1,3 +1,4 @@
+// For size_t
 #include <stdint.h>
 
 #include <stdio.h>