diff --git a/include/zephyr/shell/shell_string_conv.h b/include/zephyr/shell/shell_string_conv.h
index 4ecb992125e..a38a5cc2ef9 100644
--- a/include/zephyr/shell/shell_string_conv.h
+++ b/include/zephyr/shell/shell_string_conv.h
@@ -7,6 +7,7 @@
 #ifndef SHELL_STRING_CONV_H__
 #define SHELL_STRING_CONV_H__
 
+#include <stdbool.h>
 #include <stdint.h>
 
 #ifdef __cplusplus