diff --git a/stim/envi/envi.h b/stim/envi/envi.h
index 6687b08..cd7e105 100644
--- a/stim/envi/envi.h
+++ b/stim/envi/envi.h
@@ -359,11 +359,23 @@ public:
 
 		fseek(f, 9, SEEK_SET);											//seek to the number of bands
 		short b;														//allocate space for the number of bands
-		fread(&b, sizeof(short), 1, f);									//read the number of bands
+		size_t nread = fread(&b, sizeof(short), 1, f);					//read the number of bands
+		if(nread != 1){
+			std::cout<<"Error reading band number from Agilent file."<<std::endl;
+			exit(1);
+		}
 		fseek(f, 13, SEEK_CUR);											//skip the the x and y dimensions
 		short x, y;
-		fread(&x, sizeof(short), 1, f);									//read the image x and y size
-		fread(&y, sizeof(short), 1, f);
+		nread = fread(&x, sizeof(short), 1, f);									//read the image x and y size
+		if(nread != 1){
+			std::cout<<"Error reading X dimension from Agilent file."<<std::endl;
+			exit(1);
+		}
+		nread = fread(&y, sizeof(short), 1, f);
+		if(nread != 1){
+			std::cout<<"Error reading Y dimension from Agilent file."<<std::endl;
+			exit(1);
+		}
 		fclose(f);														//close the file
 
 		//store the information from the Agilent header in the ENVI header
--
libgit2 0.21.4