diff --git a/sourcepawn/compiler/libpawnc.c b/sourcepawn/compiler/libpawnc.c
index 3331335b..e0e736a2 100644
--- a/sourcepawn/compiler/libpawnc.c
+++ b/sourcepawn/compiler/libpawnc.c
@@ -29,6 +29,11 @@
 #include "sc.h"
 #include "memfile.h"
 
+#if defined LINUX || defined __FreeBSD__ || defined __OpenBSD__ || defined DARWIN
+#include <sys/types.h>
+#include <sys/stat.h>
+#endif
+
 /* pc_printf()
  * Called for general purpose "console" output. This function prints general
  * purpose messages; errors go through pc_error(). The function is modelled
@@ -100,6 +105,17 @@ static char *prefix[3]={ "error", "fatal error", "warning" };
  */
 void *pc_opensrc(char *filename)
 {
+	#if defined LINUX || defined __FreeBSD__ || defined __OpenBSD__ || defined DARWIN
+	struct stat fileInfo;
+	if (stat(filename, &fileInfo) != 0) {
+		return NULL;
+	}
+
+	if (S_ISDIR(fileInfo.st_mode)) {
+		return NULL;
+	}
+	#endif
+
 	return fopen(filename,"rt");
 }