diff --git a/scconfig/src/default/find_io.c b/scconfig/src/default/find_io.c
index 20aa2ad2..78b9cfa6 100644
--- a/scconfig/src/default/find_io.c
+++ b/scconfig/src/default/find_io.c
@@ -125,7 +125,6 @@ int find_io_fileno(const char *name, int logdepth, int fatal)
 {
 	char test_c[256];
 	char *test_c_ =
-		NL "#include <stdio.h>"
 		NL "int main() {"
 		    /* NOTE: can not check for implicit declaration as fileno() may be a macro (e.g. on MINIX3) */
 		NL "	if (%s(stdout) >= 0)"
@@ -142,19 +141,19 @@ int find_io_fileno(const char *name, int logdepth, int fatal)
 
 	/* UNIX */
 	sprintf(test_c, test_c_, "fileno");
-	if (try_icl(logdepth, "libs/io/fileno", test_c, NULL, NULL, NULL)) {
+	if (try_icl(logdepth, "libs/io/fileno", test_c, "#include <stdio.h>\n", NULL, NULL)) {
 		put("libs/io/fileno/call", "fileno");
 		return 0;
 	}
 
 	sprintf(test_c, test_c_, "fileno");
-	if (try_icl(logdepth, "libs/io/fileno", test_c, "#include <unistd.h>\n", NULL, NULL)) {
+	if (try_icl(logdepth, "libs/io/fileno", test_c, "#include <stdio.h>\n#include <unistd.h>\n", NULL, NULL)) {
 		put("libs/io/fileno/call", "fileno");
 		return 0;
 	}
 
 	sprintf(test_c, test_c_, "fileno");
-	if (try_icl(logdepth, "libs/io/fileno", test_c, "#define _XOPEN_SOURCE\n#include <unistd.h>\n", NULL, NULL)) {
+	if (try_icl(logdepth, "libs/io/fileno", test_c, "#define _XOPEN_SOURCE\n#include <stdio.h>\n#include <unistd.h>\n", NULL, NULL)) {
 		put("libs/io/fileno/call", "fileno");
 		return 0;
 	}
diff --git a/xschem_library/devices/title-2.sym b/xschem_library/devices/title-2.sym
index 5b2421d4..6a7d3627 100644
--- a/xschem_library/devices/title-2.sym
+++ b/xschem_library/devices/title-2.sym
@@ -2,7 +2,7 @@ v {xschem version=3.1.0 file_version=1.2
 }
 G {}
 K {type=logo
-template="name=l1 author=\\"Stefan Schippers\\" rev=1.0 lock=true"
+template="name=l1 author=\\"Stefan Schippers\\" rev=1.0 lock=false"
 verilog_ignore=true
 vhdl_ignore=true
 spice_ignore=true
diff --git a/xschem_library/devices/title-3.sym b/xschem_library/devices/title-3.sym
index 994148e6..033121a5 100644
--- a/xschem_library/devices/title-3.sym
+++ b/xschem_library/devices/title-3.sym
@@ -2,7 +2,7 @@ v {xschem version=3.1.0 file_version=1.2
 }
 G {}
 K {type=logo
-template="name=l1 author=\\"Stefan Schippers\\" rev=1.0 lock=true"
+template="name=l1 author=\\"Stefan Schippers\\" rev=1.0 lock=false"
 verilog_ignore=true
 vhdl_ignore=true
 spice_ignore=true