diff --git a/epwing.go b/epwing.go
index 98bfd87..0647735 100644
--- a/epwing.go
+++ b/epwing.go
@@ -78,14 +78,17 @@ func epwingExportDb(inputPath, outputPath, language, title string, stride int, p
 
 	var data []byte
 	if toolExec {
+		exePath, err := os.Executable()
+		if err != nil {
+			return err
+		}
+
 		toolPath := filepath.Join("bin", runtime.GOOS, "zero-epwing")
 		if runtime.GOOS == "windows" {
 			toolPath += ".exe"
 		}
 
-		if toolPath, err = filepath.Abs(toolPath); err != nil {
-			return err
-		}
+		toolPath = filepath.Join(filepath.Dir(exePath), toolPath)
 
 		if _, err = os.Stat(toolPath); err != nil {
 			return fmt.Errorf("failed to find zero-epwing in '%s'", toolPath)