diff --git a/src/intern_string.hh b/src/intern_string.hh
index c3141f3d..16653497 100644
--- a/src/intern_string.hh
+++ b/src/intern_string.hh
@@ -94,7 +94,7 @@ struct string_fragment {
     bool operator==(const char *str) const {
         size_t len = strlen(str);
 
-        return len == this->length() &&
+        return len == (size_t) this->length() &&
                strncmp(this->data(), str, this->length()) == 0;
     };
 
diff --git a/test/Makefile.am b/test/Makefile.am
index 7bb1c85f..6ce9bdf9 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -131,7 +131,7 @@ test_reltime_LDADD = ../src/libdiag.a
 test_ncurses_unicode_SOURCES = test_ncurses_unicode.cc
 
 lnav_doctests_SOURCES = lnav_doctests.cc
-lnav_doctests_LDADD = ../src/libdiag.a $(CONFIG_OBJS)
+lnav_doctests_LDADD = ../src/libdiag.a $(CONFIG_OBJS) $(CURSES_LIB)
 
 drive_line_buffer_SOURCES = drive_line_buffer.cc
 drive_line_buffer_LDADD = ../src/libdiag.a $(CURSES_LIB) -lz $(CURSES_LIB)