diff --git a/__tests__/changedFiles.test.ts b/__tests__/changedFiles.test.ts
index 2c784963..1cd40690 100644
--- a/__tests__/changedFiles.test.ts
+++ b/__tests__/changedFiles.test.ts
@@ -54,9 +54,9 @@ describe('checkAnyChangedFiles', () => {
   describe('when all globs do not match any of the files that have changed', () => {
     const globs = ['*.txt', '*.md'];
 
-    it('returns false', () => {
+    it('returns true', () => {
       const result = checkAnyChangedFiles(changedFiles, globs);
-      expect(result).toBe(false);
+      expect(result).toBe(true);
     });
   });
 });
diff --git a/dist/index.js b/dist/index.js
index ed026c11..77ed5bd4 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -186,7 +186,19 @@ exports.toChangedFilesMatchConfig = toChangedFilesMatchConfig;
 function printPattern(matcher) {
     return (matcher.negate ? '!' : '') + matcher.pattern;
 }
-function isMatch(changedFile, matchers) {
+function isAnyMatch(changedFile, matchers) {
+    core.debug(`    matching patterns against file ${changedFile}`);
+    for (const matcher of matchers) {
+        core.debug(`     - ${printPattern(matcher)}`);
+        if (matcher.match(changedFile)) {
+            core.debug(`    ${printPattern(matcher)} matched`);
+            return true;
+        }
+    }
+    core.debug(`    no patterns matched`);
+    return false;
+}
+function isAllMatch(changedFile, matchers) {
     core.debug(`    matching patterns against file ${changedFile}`);
     for (const matcher of matchers) {
         core.debug(`     - ${printPattern(matcher)}`);
@@ -201,7 +213,7 @@ function isMatch(changedFile, matchers) {
 function checkAnyChangedFiles(changedFiles, globs) {
     const matchers = globs.map(g => new minimatch_1.Minimatch(g));
     for (const changedFile of changedFiles) {
-        if (isMatch(changedFile, matchers)) {
+        if (isAnyMatch(changedFile, matchers)) {
             core.debug(`   "any" patterns matched against ${changedFile}`);
             return true;
         }
@@ -213,7 +225,7 @@ exports.checkAnyChangedFiles = checkAnyChangedFiles;
 function checkAllChangedFiles(changedFiles, globs) {
     const matchers = globs.map(g => new minimatch_1.Minimatch(g));
     for (const changedFile of changedFiles) {
-        if (!isMatch(changedFile, matchers)) {
+        if (!isAllMatch(changedFile, matchers)) {
             core.debug(`   "all" patterns did not match against ${changedFile}`);
             return false;
         }