diff --git a/armsrc/fpgaloader.c b/armsrc/fpgaloader.c
index 0b94bba45..63957067f 100644
--- a/armsrc/fpgaloader.c
+++ b/armsrc/fpgaloader.c
@@ -229,8 +229,10 @@ static bool reset_fpga_stream(int bitstream_version, z_streamp compressed_fpga_s
     compressed_fpga_stream->zalloc = &fpga_inflate_malloc;
     compressed_fpga_stream->zfree = &fpga_inflate_free;
 
-    inflateInit2(compressed_fpga_stream, 0);
-
+    int res = inflateInit2(compressed_fpga_stream, 0);
+    if ( res < 0 )
+        return false;
+    
     fpga_image_ptr = output_buffer;
 
     for (uint16_t i = 0; i < FPGA_BITSTREAM_FIXED_HEADER_SIZE; i++)
diff --git a/armsrc/start.c b/armsrc/start.c
index b5947bdf3..0b48fc601 100644
--- a/armsrc/start.c
+++ b/armsrc/start.c
@@ -48,7 +48,9 @@ static void uncompress_data_section(void) {
     data_section.opaque = NULL;
 
     // initialize zlib for inflate
-    inflateInit2(&data_section, 15);
+    int res = inflateInit2(&data_section, 15);
+    if ( res < 0 )
+        return;
 
     // uncompress data segment to RAM
     inflate(&data_section, Z_FINISH);
diff --git a/client/fpga_compress.c b/client/fpga_compress.c
index 00e62d74b..cba92a99e 100644
--- a/client/fpga_compress.c
+++ b/client/fpga_compress.c
@@ -206,7 +206,9 @@ int zlib_decompress(FILE *infile, FILE *outfile) {
     compressed_fpga_stream.opaque = Z_NULL;
 
     ret = inflateInit2(&compressed_fpga_stream, 0);
-
+    if ( res < 0 )
+        return (EXIT_FAILURE);
+    
     do {
         if (compressed_fpga_stream.avail_in == 0) {
             compressed_fpga_stream.next_in = inbuf;