--- a/progs/capsh.c
+++ b/progs/capsh.c
@@ -24,6 +24,9 @@
 #include <sys/wait.h>
 #include <sys/prctl.h>
 
+#ifndef SHELL
+#define SHELL "/bin/sh"
+#endif
 #define MAX_GROUPS       100   /* max number of supplementary groups for user */
 
 static const cap_value_t raise_setpcap[1] = { CAP_SETPCAP };
@@ -557,10 +560,10 @@ int main(int argc, char *argv[], char *envp[])
 	    }
 	    printf("\n");
 	} else if ((!strcmp("--", argv[i])) || (!strcmp("==", argv[i]))) {
-	    argv[i] = strdup(argv[i][0] == '-' ? "/bin/bash" : argv[0]);
+	    argv[i] = strdup(argv[i][0] == '-' ? SHELL : argv[0]);
 	    argv[argc] = NULL;
 	    execve(argv[i], argv+i, envp);
-	    fprintf(stderr, "execve /bin/bash failed!\n");
+	    fprintf(stderr, "execve " SHELL " failed!\n");
 	    exit(1);
 	} else {
 	usage:
@@ -582,7 +585,7 @@ int main(int argc, char *argv[], char *envp[])
 		   "  --killit=<n>   send signal(n) to child\n"
 		   "  --forkfor=<n>  fork and make child sleep for <n> sec\n"
 		   "  ==             re-exec(capsh) with args as for --\n"
-		   "  --             remaing arguments are for /bin/bash\n"
+		   "  --             remaing arguments are for " SHELL "\n"
 		   "                 (without -- [%s] will simply exit(0))\n",
 		   argv[0], argv[0]);