Found by cppcheck:
[wmclockmon/src/main.c:536]: (error) Resource leak: file
[wmclockmon/src/main.c:1711]: (error) Resource leak: file
[wmclockmon/wmclockmon-config/tools.c:181]: (error) Resource leak: file

diff --git a/wmclockmon/src/main.c b/wmclockmon/src/main.c
index 1bd7e62..740c580 100644
--- a/wmclockmon/src/main.c
+++ b/wmclockmon/src/main.c
@@ -533,6 +533,7 @@ static void load_stylepart(const char *filename, StyleDef *opts) {
             fprintf(stderr, "Error in %s at line %d :\n[%s].\n",
                     filename, i, line);
     }
+    fclose(file);
 }
 
 
@@ -1706,6 +1707,7 @@ static void reload_alarms() {
 
             if (strncmp(line, "Alarm", 5) == 0) alrm_add(&alarms, value);
         }
+        fclose(file);
     }
     if (calalrms) load_calalrms();
 }
diff --git a/wmclockmon/wmclockmon-config/tools.c b/wmclockmon/wmclockmon-config/tools.c
index 74a5cae..06d16ab 100644
--- a/wmclockmon/wmclockmon-config/tools.c
+++ b/wmclockmon/wmclockmon-config/tools.c
@@ -178,6 +178,7 @@ void load_cfgfile() {
         else
             printf("Error in %s at line %d :\n[%s].\n", config_file, i, line);
     }
+    fclose(file);
 }