diff --git a/tools/lib/bpf/bpf_helpers.h b/tools/lib/bpf/bpf_helpers.h
index 72b251110c4d75a8125a2659d8499ba7c525d59f..ae6c975e0b87b6ea080be00c53bebba7ba81ba28 100644
--- a/tools/lib/bpf/bpf_helpers.h
+++ b/tools/lib/bpf/bpf_helpers.h
@@ -30,7 +30,7 @@
 #define SEC(NAME) __attribute__((section(NAME), used))
 
 #ifndef __always_inline
-#define __always_inline __attribute__((always_inline))
+#define __always_inline inline __attribute__((always_inline))
 #endif
 #ifndef __noinline
 #define __noinline __attribute__((noinline))