diff --git a/tests/libtest/Makefile.am b/tests/libtest/Makefile.am
index 29ab0a9c4..ca7c01c81 100644
--- a/tests/libtest/Makefile.am
+++ b/tests/libtest/Makefile.am
@@ -137,7 +137,7 @@ CS_1 =
 CS_ = $(CS_0)
 
 checksrc:
-	$(CHECKSRC)@PERL@ $(top_srcdir)/lib/checksrc.pl $(srcdir)/*.c
+	$(CHECKSRC)@PERL@ $(top_srcdir)/lib/checksrc.pl $(srcdir)/*.[ch]
 
 if CURLDEBUG
 # for debug builds, we scan the sources on all regular make invokes
diff --git a/tests/libtest/test.h b/tests/libtest/test.h
index fd88365c6..393743962 100644
--- a/tests/libtest/test.h
+++ b/tests/libtest/test.h
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -20,7 +20,7 @@
  *
  ***************************************************************************/
 
-/* !checksrc! disable ASSIGNWITHINCONDITION all */
+/* !checksrc! disable ASSIGNWITHINCONDITION 14 */
 
 /* Now include the curl_setup.h file from libcurl's private libdir (the source
    version, but that might include "curl_config.h" from the build dir so we
diff --git a/tests/server/Makefile.am b/tests/server/Makefile.am
index ef3303ec1..ca306e29a 100644
--- a/tests/server/Makefile.am
+++ b/tests/server/Makefile.am
@@ -62,7 +62,7 @@ CS_1 =
 CS_ = $(CS_0)
 
 checksrc:
-	$(CHECKSRC)@PERL@ $(top_srcdir)/lib/checksrc.pl $(srcdir)/*.c
+	$(CHECKSRC)@PERL@ $(top_srcdir)/lib/checksrc.pl $(srcdir)/*.[ch]
 
 if CURLDEBUG
 # for debug builds, we scan the sources on all regular make invokes
diff --git a/tests/unit/Makefile.am b/tests/unit/Makefile.am
index 6996cad6a..4bcd47d22 100644
--- a/tests/unit/Makefile.am
+++ b/tests/unit/Makefile.am
@@ -70,7 +70,7 @@ CS_1 =
 CS_ = $(CS_0)
 
 checksrc:
-	$(CHECKSRC)@PERL@ $(top_srcdir)/lib/checksrc.pl $(srcdir)/*.c
+	$(CHECKSRC)@PERL@ $(top_srcdir)/lib/checksrc.pl $(srcdir)/*.[ch]
 
 if BUILD_UNITTESTS
 noinst_PROGRAMS = $(UNITPROGS)