diff --git a/src/common/Makefile.am b/src/common/Makefile.am
index c5494015..83a40e1c 100644
--- a/src/common/Makefile.am
+++ b/src/common/Makefile.am
@@ -43,4 +43,4 @@ TIDY_FILES = \
 	libpkcs11.c libscdl.c
 
 check-local:
-	if [ -x "$(CLANGTIDY)" ]; then clang-tidy -config='' --checks='$(TIDY_CHECKS)' -header-filter=.* $(TIDY_FILES) -- $(TIDY_FLAGS); fi
+	if [ -x "$(CLANGTIDY)" ]; then clang-tidy -config='' --checks='$(TIDY_CHECKS)' -header-filter=.* $(addprefix $(srcdir)/,$(TIDY_FILES)) -- $(TIDY_FLAGS); fi
diff --git a/src/libopensc/Makefile.am b/src/libopensc/Makefile.am
index 2cee992d..40d77e58 100644
--- a/src/libopensc/Makefile.am
+++ b/src/libopensc/Makefile.am
@@ -147,4 +147,4 @@ TIDY_FILES = \
 	#$(SOURCES)
 
 check-local:
-	if [ -x "$(CLANGTIDY)" ]; then clang-tidy -config='' --checks='$(TIDY_CHECKS)' -header-filter=.* $(TIDY_FILES) -- $(TIDY_FLAGS); fi
+	if [ -x "$(CLANGTIDY)" ]; then clang-tidy -config='' --checks='$(TIDY_CHECKS)' -header-filter=.* $(addprefix $(srcdir)/,$(TIDY_FILES)) -- $(TIDY_FLAGS); fi
diff --git a/src/pkcs11/Makefile.am b/src/pkcs11/Makefile.am
index 8aeaec58..557a52ef 100644
--- a/src/pkcs11/Makefile.am
+++ b/src/pkcs11/Makefile.am
@@ -87,4 +87,4 @@ TIDY_FILES = \
 			 framework-pkcs15init.c debug.c
 
 check-local:
-	if [ -x "$(CLANGTIDY)" ]; then clang-tidy -config='' --checks='$(TIDY_CHECKS)' -header-filter=.* $(TIDY_FILES) -- $(TIDY_FLAGS); fi
+	if [ -x "$(CLANGTIDY)" ]; then clang-tidy -config='' --checks='$(TIDY_CHECKS)' -header-filter=.* $(addprefix $(srcdir)/,$(TIDY_FILES)) -- $(TIDY_FLAGS); fi