diff --git a/src/Makefile.am b/src/Makefile.am
index 482d191e..ce1537ae 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -181,6 +181,7 @@ utils/appformime.cpp \
 utils/appformime.h \
 utils/base64.cpp \
 utils/base64.h \
+utils/cancelcheck.cpp \
 utils/cancelcheck.h \
 utils/chrono.h \
 utils/chrono.cpp \
diff --git a/src/windows/qmkrecoll/librecoll.pro b/src/windows/qmkrecoll/librecoll.pro
index 11b31486..5b403a8b 100644
--- a/src/windows/qmkrecoll/librecoll.pro
+++ b/src/windows/qmkrecoll/librecoll.pro
@@ -79,6 +79,7 @@ SOURCES += \
 ../../unac/unac.cpp \
 ../../utils/appformime.cpp \
 ../../utils/base64.cpp \
+../../utils/cancelcheck.cpp \
 ../../utils/chrono.cpp \
 ../../utils/circache.cpp \
 ../../utils/conftree.cpp \