diff --git a/src/suunto_d9_parser.c b/src/suunto_d9_parser.c
index 939dab6..e71a60f 100644
--- a/src/suunto_d9_parser.c
+++ b/src/suunto_d9_parser.c
@@ -502,6 +502,7 @@ suunto_d9_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t ca
 				unsigned int he, o2;
 				unsigned int length;
 
+				sample.event.type = SAMPLE_EVENT_NONE;
 				sample.event.time = 0;
 				sample.event.flags = 0;
 				sample.event.value = 0;
@@ -634,7 +635,9 @@ suunto_d9_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t ca
 					else
 						sample.event.flags = SAMPLE_FLAGS_BEGIN;
 					sample.event.time = seconds;
-					if (callback) callback (DC_SAMPLE_EVENT, sample, userdata);
+					if (sample.event.type != SAMPLE_EVENT_NONE) {
+						if (callback) callback (DC_SAMPLE_EVENT, sample, userdata);
+					}
 					offset += 2;
 					break;
 				case 0x04: // Bookmark/Heading
diff --git a/src/suunto_eon_parser.c b/src/suunto_eon_parser.c
index f89fe2a..534b847 100644
--- a/src/suunto_eon_parser.c
+++ b/src/suunto_eon_parser.c
@@ -292,6 +292,7 @@ suunto_eon_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t c
 			complete = 1;
 		} else {
 			// Event.
+			sample.event.type = SAMPLE_EVENT_NONE;
 			sample.event.time = 0;
 			sample.event.flags = 0;
 			sample.event.value = 0;
@@ -313,7 +314,9 @@ suunto_eon_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t c
 				break;
 			}
 
-			if (callback) callback (DC_SAMPLE_EVENT, sample, userdata);
+			if (sample.event.type != SAMPLE_EVENT_NONE) {
+				if (callback) callback (DC_SAMPLE_EVENT, sample, userdata);
+			}
 		}
 	}
 
diff --git a/src/suunto_vyper_parser.c b/src/suunto_vyper_parser.c
index c0618e8..910670f 100644
--- a/src/suunto_vyper_parser.c
+++ b/src/suunto_vyper_parser.c
@@ -346,6 +346,7 @@ suunto_vyper_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t
 			complete = 1;
 		} else {
 			// Event.
+			sample.event.type = SAMPLE_EVENT_NONE;
 			sample.event.time = 0;
 			sample.event.flags = 0;
 			sample.event.value = 0;
@@ -382,7 +383,9 @@ suunto_vyper_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t
 				break;
 			}
 
-			if (callback) callback (DC_SAMPLE_EVENT, sample, userdata);
+			if (sample.event.type != SAMPLE_EVENT_NONE) {
+				if (callback) callback (DC_SAMPLE_EVENT, sample, userdata);
+			}
 		}
 	}