diff --git a/src/atomics_cobalt_parser.c b/src/atomics_cobalt_parser.c
index 282bbb8..ace7b7a 100644
--- a/src/atomics_cobalt_parser.c
+++ b/src/atomics_cobalt_parser.c
@@ -149,7 +149,7 @@ atomics_cobalt_parser_get_field (dc_parser_t *abstract, dc_field_type_t type, un
 			*((unsigned int *) value) = array_uint16_le (p + 0x58) * 60;
 			break;
 		case DC_FIELD_MAXDEPTH:
-			*((double *) value) = (array_uint16_le (p + 0x56) - atmospheric) * (BAR / 1000.0) / parser->hydrostatic;
+			*((double *) value) = (signed int)(array_uint16_le (p + 0x56) - atmospheric) * (BAR / 1000.0) / parser->hydrostatic;
 			break;
 		case DC_FIELD_GASMIX_COUNT:
 		case DC_FIELD_TANK_COUNT:
@@ -266,7 +266,7 @@ atomics_cobalt_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback
 
 		// Depth (1/1000 bar).
 		unsigned int depth = array_uint16_le (data + offset + 0);
-		sample.depth = (depth - atmospheric) * (BAR / 1000.0) / parser->hydrostatic;
+		sample.depth = (signed int)(depth - atmospheric) * (BAR / 1000.0) / parser->hydrostatic;
 		if (callback) callback (DC_SAMPLE_DEPTH, sample, userdata);
 
 		// Pressure (1 psi).
diff --git a/src/mclean_extreme_parser.c b/src/mclean_extreme_parser.c
index f053986..9b5c91c 100644
--- a/src/mclean_extreme_parser.c
+++ b/src/mclean_extreme_parser.c
@@ -177,10 +177,10 @@ mclean_extreme_parser_get_field(dc_parser_t *abstract, dc_field_type_t type, uns
 			*((unsigned int *)value) = array_uint32_le(abstract->data + SZ_CFG + 0x000C) - array_uint32_le(abstract->data + SZ_CFG + 0x0000);
 			break;
 		case DC_FIELD_MAXDEPTH:
-			*((double *)value) = 0.01 * (array_uint16_le(abstract->data + SZ_CFG + 0x0016) - psurf) / density;
+			*((double *)value) = 0.01 * (signed int)(array_uint16_le(abstract->data + SZ_CFG + 0x0016) - psurf) / density;
 			break;
 		case DC_FIELD_AVGDEPTH:
-			*((double *)value) = 0.01 * (array_uint16_le(abstract->data + SZ_CFG + 0x0018) - psurf) / density;
+			*((double *)value) = 0.01 * (signed int)(array_uint16_le(abstract->data + SZ_CFG + 0x0018) - psurf) / density;
 			break;
 		case DC_FIELD_SALINITY:
 			salinity->density = density * 1000.0;
diff --git a/src/shearwater_predator_parser.c b/src/shearwater_predator_parser.c
index 43eefa8..290001a 100644
--- a/src/shearwater_predator_parser.c
+++ b/src/shearwater_predator_parser.c
@@ -809,7 +809,7 @@ shearwater_predator_parser_samples_foreach (dc_parser_t *abstract, dc_sample_cal
 
 				// Depth (absolute pressure in millibar)
 				unsigned int depth = array_uint16_be (data + idx + 1);
-				sample.depth = (depth - parser->atmospheric) * (BAR / 1000.0) / (parser->density * GRAVITY);
+				sample.depth = (signed int)(depth - parser->atmospheric) * (BAR / 1000.0) / (parser->density * GRAVITY);
 				if (callback) callback (DC_SAMPLE_DEPTH, sample, userdata);
 
 				// Temperature (1/10 °C).
diff --git a/src/uwatec_smart_parser.c b/src/uwatec_smart_parser.c
index dd867e4..c28e1d0 100644
--- a/src/uwatec_smart_parser.c
+++ b/src/uwatec_smart_parser.c
@@ -1233,7 +1233,7 @@ uwatec_smart_parse (uwatec_smart_parser_t *parser, dc_sample_callback_t callback
 			}
 
 			if (have_depth) {
-				sample.depth = (depth - depth_calibration) / 50.0 / salinity;
+				sample.depth = (signed int)(depth - depth_calibration) / 50.0 / salinity;
 				if (callback) callback (DC_SAMPLE_DEPTH, sample, userdata);
 			}